Tuesday 17 March 2015

3 Healthy Diet Meal Plans That Are Proven to Work

There are many diets that can work.
The key is finding something that you like and can stick to in the long run.
Here are meal plans for 3 healthy diets that are scientifically proven to be effective.
All of them include detailed information on foods to eat, foods to avoid, along with sample menus, shopping lists and even videos that explain some of the key concepts.

1. Low-Carb, Real Food Based Diet

The low-carb, real food based diet is perfect for people who need to lose weight, optimize health and lower the risk of disease. [Read more…]
Woman Wondering Whether to Eat Meat or Vegetables
It is a flexible diet and you can fine-tune your carbohydrate intake depending on your goals.
This diet is high in vegetables, meat, fish, eggs, fruits, nuts and fats, but low in starches, sugars and processed foods.
Check out the full meal plan here.
Here are some more articles about the diet:

2. Mediterranean Diet

The mediterranean diet is an excellent diet that has been well studied. It is particularly effective for heart disease prevention. [Read more…]
Boy Smiling With Mediterranean Meal
It involves eating the types of foods that were commonly eaten around the Mediterranean sea back in the 20th century.
It includes plenty of vegetables, fruits, fish, poultry, whole grains, legumes, berries and dairy products.
Check out the full meal plan here.
More articles about the Mediterranean diet:

3. Paleo Diet

The paleo diet is a very popular diet that is effective for weight loss and general health improvement. It is currently the most popular “diet” in the world. [Read more…]
Young Woman Eating Green Grapes
This diet involves eating unprocessed foods that resemble the foods available to our paleolithic ancestors.

Top 11 Health Foods That Can Kill You

Nutrition is full of nonsense.
You will find bold health claims for all kinds of foods, most often based on zero evidence.
Here are the top 11 “health foods” that are actually very harmful.

1. Fruit JuicesYoung Woman Drinking Orange Juice

The fruit juices you find at the supermarket aren’t always what they seem.
They may have small amounts of real fruit in them, but often they are little more than water, artificial flavor and sugar.
But even if you’re drinking real fruit juice, it is still a bad idea.
Fruit juice is like fruit with most of the good stuff removed.
All that is left is the sugar and a few vitamins. Orange juice, for example, contains the same amount of sugar as Coca Cola.
There’s no fiber in it, no chewing resistance and nothing to stop you from downing massive amounts of sugar in a short amount of time.
Eating too much sugar is associated with all sorts of diseases. These include obesity, type II diabetes, cardiovascular disease and many others

2. Whole Wheat

Bread
It is true that whole wheat is healthier than refined wheat.
But this does NOT mean that whole wheat is healthy.
It’s kind of like saying that because filtered cigarettes are healthier than unfiltered cigarettes, everyone should be smoking filtered cigarettes. It’s flawed logic.
There are plenty of good reasons to avoid wheat… both the refined and the whole variety.
For example, wheat is the main source of gluten in the diet and a large part of the population may be gluten sensitive

The immune system of susceptible individuals attacks the gluten proteins in the digestive tract. This can cause damage to the lining of the digestive tract, pain, bloating, tiredness, stool inconsistency and other nasty symptoms (7, 8, 9).
One study shows that wheat fiber can make you Vitamin D deficient, making you burn through your stores of this important vitamin much faster (10).
Another study shows that whole wheat raises small, dense LDL (the truly “bad” cholesterol) by a whopping 60% (11).
Bottom Line: Whole wheat is rich in gluten and can cause digestive problems and various symptoms. It may also cause Vitamin D deficiency and elevated small, dense LDL cholesterol.

3. Agave Nectar

Honey
In the health food isle at the supermarket, you will definitely find some “sugar-free” products that are sweetened with Agave.
This sweetener is touted as a healthy alternative to sugar because it is natural has a low glycemic index.
But the harmful effects of sugar have little to do with its glycemic index, it is harmful primarily because it is loaded with unnatural amounts of fructose.
Too much fructose in the diet can cause all sorts of problems, especially in people who don’t exercise much.
All fructose is metabolized by the liver. If the liver is full of glycogen the fructose will be turned into fat (11, 12).
This can cause non-alcoholic fatty liver disease and all kinds of metabolic problems like resistance to the hormones insulin and leptin, which will ultimately lead to obesity and diabetes (13, 14, 15, 16).
While regular sugar is 50% fructose, the fructose content of Agave is as high as 90%. If anything, agave is even worse than sugar!
Bottom Line: Agave nectar is loaded with fructose and therefore causes all the same problems as regular sugar and High Fructose Corn Syrup.

4. Sports Drinks

Man With Sports Drink
Sports drinks were designed for athletes who have just finished an intense training session with massive sweating and glycogen depletion.
For this reason, sports drinks contain:
  • Water – to replenish lost fluid.
  • Electrolytes – to replenish electrolytes like sodium that were lost via sweat.
  • Sugar – because athletes need energy after an intense workout.
You don’t need any additional electrolytes unless you’ve been doing a very intense workout and most people are already eating too much sugar.
One bottle of Gatorade contains over 30 grams of sugar.
You’re better off sticking to plain water, which you should certainly drink plenty of, especially around workouts.
Bottom Line: If you’re not doing super intense workouts, then you should avoid sports drinks. They are not needed and contain sugar.

5. “Heart-Healthy” Vegetable Oils

Vegetable Oils
As the fear of saturated fat took hold of the world, consumption of all kinds of nasty ingredients increased.
Prime examples are industrial seed- and vegetable oils like soybean, corn and cottonseed oil.
These oils are extracted from seeds using very harsh processing methods and include high heat, bleaching and the toxic solvent hexane.
These oils contain very large amounts of Omega-6 fatty acids, way more than humans ever consumed throughout evolution.
We need small amounts of these fatty acids in the diet, such as the amounts found in meat and nuts. However, if we eat way too much like is the case with Western populations, this causes problems (17).
Eating too much of these fats can lead to inflammation, which is a leading cause of many chronic diseases (18).
These oils get incorporated into our body fat stores and cellular membranes, where they are highly sensitive to oxidation and damage.
To top it all off, the industrial vegetable oils that you find in the supermarket contain 0.56-4.2% of their fatty acid as trans fats, which are highly toxic (19).
(This does not apply to olive oil, which is good for you!)
Bottom Line: Vegetable oils are unhealthy and lead to inflammation. They are potential key players in the epidemic of Western diseases.

6. Low-Fat or Fat-Free Foods

Yogurt
It ain’t the fat, people!
Despite the last decades of propaganda against saturated fats, they have now been proven to be harmless (20, 21).
When the anti-fat message first came out, food manufacturers started producing “healthy” products that were low-fat or fat-free.
The only problem is that foods that have had the fat removed taste like crap.
The food manufacturers then loaded their products with chemicals, artificial sweeteners and massive amounts of sugar.
What they basically did was remove the good stuff (fat) and replace it with bad stuff (sugar).
This is how they managed to turn perfectly healthy foods like yogurt into very harmful products filled with unhealthy ingredients.
Bottom Line: Avoid everything labelled “low-fat” or “fat-free.” These are highly processed products loaded with sugar and other harmful substances.

7. Gluten-Free Junk Foods

Muffin
Many people have started to avoid gluten… a protein found in wheat, spelt, rye and barley (and a few other grains).
Almost a third of the U.S. population currently wants to cut back on gluten or go gluten-free.
Food manufacturers have caught up on the trend and have started offering all sorts of gluten-free “health foods.”
The problem with these foods is that they’re usually not healthy at all.
Instead of a gluten grain, they’re made with other starches like potato starch, tapioca starch or some others. These starches are usually highly refined, void of nutrients and spike blood sugar fast, just like wheat.
But these products are often also loaded with sugar and other harmful or artificial chemicals.
This does NOT apply to foods that are naturally gluten free, like meats or vegetables. If a product says “gluten-free” on the package, then it’s probably bad for you.
Bottom Line: Gluten-free foods are highly processed foods that are not much healthier than their gluten-containing counterparts. It’s best to avoid them.

8. Margarine And Fake Butters

Butter
“I wish butter tasted more like margarine, said nobody ever.”Danny J. Albers
Another side effect of the anti-fat histeria is a plethora of so-called “healthy” butter alternatives.
The most notable example of these is margarine. It used to be loaded with trans fats, now it tends to contain processed vegetable oils instead.
Butter consumption went down, margarine consumption went up.
The problem with this is that butter is healthy. Margarine is NOT.
Grass-fed butter, in particular, is an excellent source of the fatty acid butyrate and Vitamin K2, both of which can have powerful positive effects on health (22, 23).
Margarine is a processed food with harmful ingredients that can make you sick.
In one large study, replacing butter with margarine lead to a drastically increased risk of death from heart attacks (24).
This is one great example of where blindly following the mainstream advice can put you in an early grave.
Bottom Line: Margarine is a processed food that contains unhealthy, artificial ingredients. Avoid it, use real grass-fed butter instead.

9. Energy Bars

Energy Bar
Energy bars are in the same boat as sports drinks – most people don’t need them.
If you’re an elite athlete who desperately needs to keep protein intake high and eat every 2-3 hours, then these bars can definitely be convenient.
However, most people don’t need to eat that often and these bars don’t contain anything that you can’t get from real foods.
Energy bars and protein bars are often highly processed products. Even though they may be higher in protein than chocolate bars, they often still contain the same unhealthy ingredients.
Sugar, white flour, artificial flavor… you name it, they’ve got it.
Of course, there are some healthier brands available, but if you want to avoid the crap then you must read labels!
If you’re starving and far away from home, then healthier types of energy bars can certainly be better than a burger and a coke, but your money is still better spent on real foods.
Bottom Line: Energy and protein bars are often highly processed products. Most people don’t need them and they tend to contain sugar and other nasty ingredients.

10. Low Carb Junk Foods

Atkins Bar
As people have changed their mind on fat being the root of all evil, some people have started cutting back on carbs instead.
Again, food manufacturers have caught notice and brought all sorts of low-carb junk foods to the market.
Even though something is low in carbs and can help you lose weight, it may still be very unhealthy.
Great examples are the low-carb Atkins bars. These are nasty, highly processed products that nobody should be eating.
If you’re going to do a low-carb diet, stick to real, unprocessed foods.
Bottom Line: There are some low-carb processed foods on the market that are extremely unhealthy and loaded with artificial ingredients.

11. “Healthy” Breakfast Cereals

Breakfast Cereal
Most highly processed breakfast cereals are not healthy.
In fact, they are among the worst foods you can eat.
They’re often loaded with sugar and refined carbohydrates.
Then the manufacturers fortify them with some synthetic vitamins and put tiny amounts of whole grains in the mix, then market their products as healthy.
Don’t be fooled by the labels… low-fat, fat-free, whole grain, etc. Just check the ingredients list on these products, they’re usually loaded with sugar.
Starting the day with a high-sugar cereal will set you up for a blood sugar crash later in the day, followed by hunger, cravings and another high-carb meal.

A Sample Low-Carb Menu For One Week



This is a sample menu for one week on a low carb diet plan.
It provides less than 50 grams of total carbs per day, but as I mentioned above if you are healthy and active you can go beyond that.
Mother And Daughter Cooking

Monday

  • Breakfast: Omelet with various vegetables, fried in butter or coconut oil.
  • Lunch: Grass-fed yogurt with blueberries and a handful of almonds.
  • Dinner: Cheeseburger (no bun), served with vegetables and salsa sauce.

Tuesday

  • Breakfast: Bacon and eggs.
  • Lunch: Leftover burgers and veggies from the night before.
  • Dinner: Salmon with butter and vegetables.

Wednesday

  • Breakfast: Eggs and vegetables, fried in butter or coconut oil.
  • Lunch: Shrimp salad with some olive oil.
  • Dinner: Grilled chicken with vegetables.

Thursday

  • Breakfast: Omelet with various vegetables, fried in butter or coconut oil.
  • Lunch: Smoothie with coconut milk, berries, almonds and protein powder.
  • Dinner: Steak and veggies.

Friday

  • Breakfast: Bacon and Eggs.
  • Lunch: Chicken salad with some olive oil.
  • Dinner: Pork chops with vegetables.

Saturday

  • Breakfast: Omelet with various veggies.
  • Lunch: Grass-fed yogurt with berries, coconut flakes and a handful of walnuts.
  • Dinner: Meatballs with vegetables.

Sunday

  • Breakfast: Bacon and Eggs.
  • Lunch: Smoothie with coconut milk, a bit of heavy cream, chocolate-flavoured protein powder and berries.
  • Dinner: Grilled chicken wings with some raw spinach on the side.
Include a variety of vegetables in your diet. If your goal is to remain under 50 grams of carbs per day, then there is room for plenty of veggies and one fruit per day.
If you want to see examples of some of my go-to meals, read this:
7 Healthy Low-Carb Meals in Under 10 Minutes.
Again, if you’re healthy, lean and active, you can add some tubers like potatoes and sweet potatoes, as well as some healthier grains like rice and oats.
Mother And Daughter Eating

Some Healthy, Low-Carb Snacks

There is no health reason to eat more than 3 meals per day, but if you get hungry between meals then here are some healthy, easy to prepare low-carb snacks that can fill you up:
  • A Piece of Fruit
  • Full-fat Yogurt
  • A Hard-Boiled Egg or Two
  • Baby Carrots
  • Leftovers From The Night Before
  • A Handful of Nuts
  • Some Cheese and Meat

Eating at Restaurants

Female Waitress
At most restaurants, it is fairly easy to make your meals LCRF-friendly.
  1. Order a meat- or fish-based main dish.
  2. Ask them to fry your food in real butter.
  3. Get extra vegetables instead of bread, potatoes or rice.

A Simple Low-Carb Shopping List

A good rule is to shop at the perimeter of the store, where the whole foods are likelier to be found.
Organic and grass-fed foods are best, but only if you can easily afford them. Even if you don’t buy organic, your diet will still be a thousand times better than the standard western diet.
Try to choose the least processed option that still fits into your price range.
Mother And Daughter Buying Groceries
  • Meat (Beef, lamb, pork, chicken, bacon)
  • Fish (Fatty fish like salmon is best)
  • Eggs (Choose Omega-3 enriched or pastured eggs if you can)
  • Butter
  • Coconut Oil (Choose Extra Virgin)
  • Lard
  • Olive Oil
  • Cheese
  • Heavy Cream
  • Sour Cream
  • Yogurt (full-fat, unsweetened)
  • Blueberries (can be bought frozen)
  • Nuts
  • Olives
  • Fresh vegetables: greens, peppers, onions, etc.
  • Frozen vegetables: broccoli, carrots, various mixes.
  • Salsa Sauce
  • Condiments: sea salt, pepper, garlic, mustard, etc.
I recommend clearing your pantry of all unhealthy temptations if you can: chips, candy, ice cream, sodas, juices, breads, cereals and baking ingredients like wheat flour and sugar.

A Low Carb Diet Meal Plan and Menu That Can Save Your Life

The low carb, real food based diet involves eating natural, unprocessed foods with a low carbohydrate content. For a detailed overview, read this.
There is a lot of scientific evidence that this type of diet is the best option for people who want to lose weight, optimize health and lower the risk of disease.
Simple Meal Plan
Photo by Adam Fields.

A Low Carb Diet Meal Plan

What foods you should eat depends on a few things, including how healthy you are, how much you exercise and how much weight you have to lose.
Consider all of this as a general guideline, not something written in stone.

The Basics

Eat: Meat, fish, eggs, vegetables, fruit, nuts, seeds, high-fat dairy, fats, healthy oils and maybe even some tubers and non-gluten grains.
Don’t Eat: Sugar, HFCS, wheat, seed oils, trans fats, artificial sweeteners, “diet” and low-fat products and highly processed foods.

Foods to Avoid

Overweight Man Eating Cake You should avoid these 7 foods, in order of importance:
  • Sugar: Soft drinks, fruit juices, agave, candy, ice cream and many others.
  • Gluten Grains: Wheat, spelt, barley and rye. Includes breads and pastas.
  • Trans Fats: “Hydrogenated” or “partially hydrogenated” oils.
  • High Omega-6 Seed- and Vegetable Oils: Cottonseed-, soybean-, sunflower-, grapeseed-, corn-, safflower and canola oils.
  • Artificial Sweeteners: Aspartame, Saccharin, Sucralose, Cyclamates and Acesulfame Potassium. Use Stevia instead.
  • “Diet” and “Low-Fat” Products: Many dairy products, cereals, crackers, etc.
  • Highly Processed Foods: If it looks like it was made in a factory, don’t eat it.
You MUST read ingredients lists, even on foods labelled as “health foods.”

Low Carb Food List – Foods to Eat

You should base your diet on these real, unprocessed, low-carb foods.
Woman Holding Salad
  • Meat: Beef, lamb, pork, chicken and others. Grass-fed is best.
  • Fish: Salmon, trout, haddock and many others. Wild-caught fish is best.
  • Eggs: Omega-3 enriched or pastured eggs are best.
  • Vegetables: Spinach, broccoli, cauliflower, carrots and many others.
  • Fruits: Apples, oranges, pears, blueberries, strawberries.
  • Nuts and Seeds: Almonds, walnuts, sunflower seeds, etc.
  • High-Fat Dairy: Cheese, butter, heavy cream, yogurt.
  • Fats and Oils: Coconut oil, butter, lard, olive oil and cod fish liver oil.
If you need to lose weight, be careful with the cheese and nuts because they’re easy to overeat on. Don’t eat more than one piece of fruit per day.

Maybe Eat

Sweet Potato
If you’re healthy, active and don’t need to lose weight then you can afford to eat a bit more carbs.
  • Tubers: Potatoes, sweet potatoes and some others.
  • Non-gluten grains: Rice, oats, quinoa and many others.
  • Legumes: Lentils, black beans, pinto beans, etc. (If you can tolerate them).
You can have these in moderation if you want:
  • Dark Chocolate: Choose organic brands with 70% cocoa or higher.
  • Wine: Choose dry wines with no added sugar or carbs.
Dark chocolate is high in antioxidants and may provide health benefits if you eat it in moderation. However, be aware that both dark chocolate and alcohol will hinder your progress if you eat/drink too much.
Glass of water

Drink

Top 11 Most Common Nutrition Mistakes and How to Avoid Them

Nutrition is full of misinformation.
Everyone seems to “know” what is right, most often based on zero evidence.
Here are the top 11 most common nutrition mistakes that people keep repeating.

1. Drinking Fruit JuiceGirl Eating Burger While Holding an Apple

Fruit juice isn’t always what it seems to be.
It is often little more than water mixed with sugar and some kind of fruit concentrate.
In many cases, there isn’t any actual fruit in there, just chemicals that taste like fruit.
But even IF you’re drinking real, 100% fruit juice, it is still a bad idea.
That’s because fruit juices like orange juice have just about the same amount of sugar as Coca Cola and Pepsi!
Fruit juice is like fruit, except with all the good stuff removed.
There is no fiber, no chewing resistance and nothing to stop you from downing massive amounts of sugar.
While whole fruits take a long time to eat and digest, it is easy to consume large amounts of fruit juice in a short amount of time. One glass of orange juice can contain the sugar equivalent of several whole oranges.
If you’re healthy, lean and active or you just ran a marathon, then you can probably tolerate fruit juice and other sources of sugar without problems.
However, the majority of people would do best minimizing all rapidly digested sugars, which can lead to insulin resistance and all sorts of serious diseases down the line (1, 2, 3, 4).
So… eat your fruit (unless if you’re on a low-carb diet, which may require moderating them) but avoid fruit juice like the plague.
Bottom Line: Most fruit juices contain as much sugar as sugar-sweetened beverages. It is best to avoid them and choose whole fruits instead.

2. Not Reading Labels

Boy Eating a Sandwich
Many of the marketers at the junk food companies are shameless liars.
They tend to put highly misleading labels on foods… convincing health conscious people to buy unhealthy junk foods for themselves and their children.
Because most people don’t know much about nutrition, they repeatedly fall for labels like “includes whole grains,” “low-fat” or “contains Omega-3s.”
Adding small amounts of healthy ingredients to an unhealthy, highly processed food does not make it healthy.
For example, tiny amounts of Omega-3s are not going to make up for the fact that a food contains large amounts of sugar.
So… it is important to read labels. Even health foods can contain sugar, refined wheat and other very harmful ingredients.
This also applies to children’s foods that are marketed as healthy… do NOT trust the food manufacturers, READ the label.

3. Eating Whole Wheat

Bread
Awareness of the harmful effects of refined wheat has increased dramatically in the past few decades.
However, whole wheat is often mistakenly assumed to be healthy.
The problem is that whole wheat usually isn’t “whole” … the grains have been pulverized into very fine flour.
This makes the grain rapidly digestible and it can spike blood sugar just as fast as its refined counterpart
Wheat also contains large amounts of gluten, a protein that many people are sensitive to and can contribute to various adverse effects like digestive issues, pain, fatigue and stool inconsistency .
There are also multiple studies linking wheat consumption to serious diseases, including schizophrenia, autism and cerebellar ataxia. One study shows a dramatic increase in cholesterol for people eating whole wheat 
Saying that whole wheat is better than refined wheat is like saying that filtered cigarettes are better than unfiltered cigarettes.
Using that same logic, everyone should be smoking filtered cigarettes for the health benefits. It doesn’t make sense.
Bottom Line: Whole wheat is often mistakenly assumed to be healthy, but studies show that it can contribute to various symptoms and health issues.

4. Not Focusing on Real, Unprocessed Foods

When it comes to optimal health, people tend to get lost in the details. They miss the forest for the trees.
Even though “nutrition” as an academic discipline can be incredibly complicated, eating healthy can and should be simple!
High Protein Foods
Keep in mind that humans and pre-humans have managed to survive and be healthy for millions of years.
Yet, we only learned about calories, vitamins, macronutrients and all that stuff very recently. Knowing about this stuff has NOT made us healthier.
What healthy, non-industrial societies that maintain excellent health all have in common is that they eat real, unprocessed foods that resemble what they looked like in nature.
Multiple studies have examined such societies and noted almost a complete absence of Western, lifestyle-related diseases like obesity, type II diabetes and cardiovascular disease
If it looks like it was made in a factory, don’t eat it!
Bottom Line: It is most important to simply eat real, unprocessed foods. Avoid stuff that looks like it was made in a factory.

5. Not Eating Enough Protein

Meat
The health authorities advocate a relatively low protein intake.
They say that we should aim for about 56 grams per day for men and 46 grams per day for women.
However, even though this meager intake may be enough to prevent downright deficiency, it is not enough for optimal health.
Studies show that a higher protein intake can be beneficial for body composition, especially in people who are physically active
Protein is also by far the most satiating macronutrient and your body expends quite a few calories metabolizing it. For this reason, adding protein to your diet can help you lose weight without even trying
Bottom Line: Most people aren’t getting enough protein in their diet. Increased protein can enhance fat burning, reduce appetite and improve health in various ways.

6. Being Afraid of Eating Fat

Back in the 60s and 70s, many scientists believed that saturated fat was a leading cause of heart disease.
This idea formed the foundation of the low-fat, high-carb diet… which has been recommended to all Americans since the year 1977.
Boy Eating Salad
Since then, multiple studies have shown that the low-fat diet simply does not work. It doesn’t lead to weight loss or a lower risk of heart disease or cancer
In the past few decades, many studies have examined the health effects of saturated fats.
They consistently show that these fats are harmless. They raise HDL (the “good”) cholesterol and change LDL (the “bad”) to a benign subtype. Saturated fat does NOT raise your risk of cardiovascular disease
The fats to avoid are man-made trans fats and refined vegetable oils like corn, soybean and others.
There is no reason to avoid foods that are naturally high in saturated fat. This includes butter, coconut oil, eggs and red meat… these foods are perfectly healthy!
Bottom Line: Studies show that saturated fat is harmless and that the low-fat diet pushed by the mainstream nutrition organizations doesn’t work.

7. Throwing Away The Egg Yolks

Chicken and Egg, Smaller
“When life gives you eggs, you eat the damn yolks.”
– Mark Shields.
Nutrition professionals have an excellent track record of demonizing perfectly healthy foods.
Probably the worst example of that is eggs… which happen to contain a large amount of cholesterol.
Because of the cholesterol, people have been advised to reduce their consumption of eggs.
However, studies show that cholesterol in the diet doesn’t really raise cholesterol in the blood and that eggs do NOT increase your risk of heart disease
What we’re left with is one of the most nutritious foods on the planet. Eggs are loaded with vitamins, minerals, quality protein, healthy fats and various nutrients that are important for the eyes and brain
Keep in mind that this applies to whole eggs only. The yolk is where almost all the nutrients reside, the white contains nothing but protein!
Throwing away the yolks and eating only the whites is just about the worst thing you could do.
Bottom Line: Eggs are incredibly nutritious, but most of the nutrients are found in the yolk. Despite being high in cholesterol, eggs do not raise the bad cholesterol in the blood or your risk of heart disease.

8. Thinking That All That Matters is Calories

Apple And Calculator
There is a large misconception that all that matters for weight (and health for that matter) is calories.
Even though calories (the energy we take in and expend) are important, they are far from being the only thing that matters.
The truth is that different foods and macronutrients go through different metabolic pathways and can affect hunger and hormones in different ways
Even though simple calorie counting and portion control work for a lot of people, many others fail using these methods.
For some people, it is much better to focus on the right foods and macronutrients to optimize your hunger and hormones to make your body want to lose weight.
Eating less sugar and carbohydrates with more protein and fat can help you lose weight without counting a single calorie
Bottom Line: Weight loss and health are about much more than just calories. Different foods affect hunger, hormones and health in vastly different ways.

9. Cutting Back on Sodium

The nutrition organizations consistently tell us to reduce sodium in the diet.
This is supposed to lower blood pressure and reduce our risk of heart disease.
Woman in Salty Sea
However, this doesn’t actually work.
Even though sodium restriction can cause mild reductions in blood pressure, studies show that this doesn’t lower the risk of heart disease, stroke or death
Restricting sodium too much can even lead to adverse effects such as insulin resistance, as well as elevated cholesterol and triglycerides .
The biggest source of sodium in the diet is processed food. If you’re already avoiding highly processed foods, then there’s no reason not to add some salt to your foods to make them palatable.
If the “experts” had their way… we’d all be eating bland, tasteless foods with zero evidence that it would actually lead to health benefits.
Bottom Line: Despite being able to mildly reduce blood pressure, sodium restriction doesn’t lead to improved health outcomes. Avoiding salt is completely unnecessary for most people.

10. Eating Too Many Meals

Woman Standing on The Scale, Frustrated
Many people seem to think that it is best to eat 5-6 small meals per day.
They say that you need breakfast in the morning to “jump start metabolism” and then eat regularly throughout the day to “stoke the metabolic flame.”
It is true that eating can raise your metabolic rate slightly while you’re digesting and metabolizing the food
However, it is the total amount of food you eat that matters, NOT the number of meals.
This myth has actually been tested and refuted repeatedly. Controlled trials where one group eats many, smaller meals and the other fewer, larger meals find no difference between groups
The thing is… it’s not natural for the human body to be constantly in the “fed” state.
The human body is well equipped to handle short periods of famine and there are studies showing that a cellular repair process called autophagy starts to occur when we fast for a short while
Bottom Line: Eating so frequently is completely unnecessary and highly inconvenient. There is no evidence that it leads to improved outcomes.

11. Eating Too Many “Health Foods”

Every passing year, more and more people are becoming “health conscious.”
For this reason… the market for so-called “health foods” has grown rapidly in the past few decades.
The marketers have taken notice and brought all sorts of foods that are supposed to be healthy to the market. On these foods, you will find labels like “organic” and “gluten-free.”
The problem with many of these foods is that they usually aren’t healthy at all. Organic sugar is still sugar and gluten-free junk food is still junk food.
It is best to avoid processed, packaged foods… even if they are found in the “health food” aisle.
If the packaging of a food tells you that it is healthy, then it probably isn’t.

12 Free Ebooks On Circuit Theory And IC Design

Read about circuits to understand the concepts behind them well. Then you can build your own. 

Tuesday, February 04, 2014 There is a lot to electronics than only a bunch of wires. Getting good in this field requires a lot of dedication and practical experience. But nothing starts you off like a little reading. So, here are 12 free ebooks that will get you started with that. 

 Circuit Theory

1. Electric Circuit Analysis Course Notes

2. Electronic Circuit Theory

3. Basic Systems and Circuits Theory

4. Circuit Analysis Basics Lecture Notes

5. Introduction to Electronics, Signals, and Measurement

6. Electronic Circuit Analysis

7. Integrated Circuits Design For Applications In Communications

8. Circuit Analysis and Design Theory

IC Design

1. Solid State Electronics for Integrated Circuits

2. Basic Integrated Circuit Processing

3. Low Power Design Methods, Design Flows and Kits

4. Advanced Analog IC Design









electronic circuits, circuit theory, best free ebooks, free ebooks electronic circuits, circuits free ebook   



Gold Jewellery Stolen From Puri Jagannadh's House

Puri Jagannadh 

This image was posted on Facebook by Puri Jagannadh

Mr Jagannadh's daughter took out the jewellery to use it for her school programme a few days ago

Gold jewellery worth Rs 15 lakh was stolen from the residence of Telugu filmmaker Puri Jagannadh while he was away shooting, police said on March 14.

According to the police, Mr Jagannadh's daughter took out the jewellery to use it for her school programme a few days ago. The servants were aware of this and the director's family suspects their hand in the theft.

On March 13, the family realised the jewellery was missing. "Investigation is going on in full swing," Jubilee Hills police told reporters.

Puri Jagannadh was busy shooting Telugu film Jyothi Lakshmi featuring Charmi Kaur in the lead when the incident happened.

Rajinikanth Roped in For AR Murugadoss Next?

Rajinikanth                                       Rajinikanth at an event in Mumbai.
 
 
Filmmaker AR Murugadoss is likely to team up with superstar Rajinikanth for a yet-untitled Tamil project, which will be produced by Aascar Ravichandran. The project is expected to go on the floors by the year end.

"Talks are going on and it's too early to comment on the project. Having worked with all the top stars, including Kamal sir, I've been waiting for an opportunity to work with Rajini sir. It's been my biggest wish to make a film with him and it might happen soon," Mr Ravichandran told IANS.

If the project materialises, it will be Murugadoss's second venture for Mr Ravichandran after Ramanna.

Apparently, this project has been put on hold until the Lingaa issue with the distributors is resolved.

In the interim, Murugadoss will finish his next Hindi venture, a remake of Tamil hit Mounaguru, with Sonakshi Sinha.

Mumbai: Bollywood Choreographer Geeta Kapur Rams Car Into Biker

Geeta Kapur 
 This image was posted on Twitter by Geeta Kapur
Bollywood choreographer and reality show judge Geeta Kapur was arrested on March 11 after she rammed her car into a man outside a medical store at Yari Road. Kapur was later released on bail by the Versova police station. According to the police, the incident took place around 5 am March 11 near Versova Metro railway station.

Kapur, one of the three judges on dance reality show Dance India Dance, was driving her Honda Accord and rammed into a pedestrian, Nisar Mohammed Sayyed (28), who was outside Mohan Medical Store. Nisar had stepped outside the shop after purchasing some medicines, and had just sat on his motorcycle to start it, when the car hit him.

A resident of Seven Bungalows area, he works as an electrician and has two wives. Ravindranath Pawar, senior police inspector, Versova police station, said, "Choreographer Geeta Kapur was driving back to her home in Lokhandwala after dropping off her friend in Yari Road. She told us that she was trying to avoid hitting a rash biker when she lost control of the vehicle and hit Nisar."

Following the incident, Kapur called her friends and admitted the injured victim to Kokilaben Dhirubai Ambani Hospital in Andheri (West). He has suffered a fracture in his right leg and he is out of danger, said the police. A close friend of the choreographer told mid-day, "Geeta has paid the deposit to admit Nisar in Kokilaben Hospital.

She has noted the details of his health and we have assured the victim's family that we will help them." Police confirmed that Kapur was not under the influence of alcohol. She was arrested under Sections 279 (rash driving) and 338 (causing grievous hurt) of the Indian Penal Code, and immediately granted bail. Police have also taken possession of her vehicle.

Wife: Who will pay the bills?

Farida, Nisar's first wife, said, "After the incident, Geeta Kapur was taken to the police station but cops did not ask us to come to the police station, nor did they come to the hospital to record Nisar's statement. Everyone is saying it was Geeta who admitted my husband to the hospital.

Why did she not come to meet him after she was released on bail?" Farida said her husband is the sole earning member of the family and his leg has been damaged badly. "I don't know when he will get discharged from the hospital. Who will pay the bills for this?" she asked.

Triumph Tiger XRx and XCx Launched in India

Triumph Tiger XRx and XCx Launched in India

Triumph India had showcased the new Tigers at the India Bike Week and we knew they would be launched soon. Finally, the company has launched the bikes and the Tiger XRx is priced at Rs. 11.6 lakh, while the Tiger 800 XCx costs Rs. 12.7 lakh. Then there is also the base model, the Tiger 800 XR which retails at Rs. 10.5 lakh (all prices ex-showroom Delhi).
These new additions sit alongside the Explorer and 800XC models in the Tiger range. The company announced that the motorcycles will come via the CKD route and bookings will start from today.
Also Read: Triumph Tiger 800 Review
The Triumph Tiger 800 XCx is what you call a hardcore off-roader version with spoke wheels. It has 43mm upside down forks at the front and WP monoshock at the rear and there are twin discs at the front and a single at the rear. The 800 XCx also comes with switchable ABS as well as adjustable rider seat height and handlebar position.

The Tiger 800 XRx on the other hand gets everything that's aforementioned but misses out on the rugged adjustable suspension. Triumph has also lowered the seat height of the XRx by 10 mm compared to the XCx for better road use. Both the motorcycles come with cruise control and four traction modes.
Both the Tigers are powered by a second generation liquid-cooled, 12-valve, 800cc DOHC inline three-cylinder engine which develops 94bhp and 79 Nm of torque. The engine is mated to a 6-speed gearbox on both the bikes.
The Tigers come with a 19 litre fuel tank and according to Triumph are 17% more fuel efficient than its predecessor.

Building Better Power Sources for Modern Embedded Systems

Miniaturisation of electronics has created numerous modern form factors where a conventional battery does not fit any more. Thus you may need to go for a different battery to power your new mobile design. This article helps you in selecting the one for your next-generation embedded system

Sneha Ambastha and Dilin Anand



As the most popular portable energy source for embedded systems, batteries are paving their way through mainstream applications as the primary power source of choice. An increasing number of designs are being made where a device is designed around the battery, thus having an increased effect on the design’s form factor.

While much of these design decisions are simple, there are cases where a purposefully over-engineered device might need a higher current support than its conventional power source could deliver without affecting user experience. It is for such cases that engineers usually ponder over the inclusion of a bigger battery at the cost of sheer bulk, or include energy-harvesting features that increase cost and complexity.

Power sources and the applications they suit
The decision to select a power source for a commercial product is primarily based on the environment it is being designed for, the device’s power requirements, its size and form factor, as well as targeted cost of the final product.
Power consumption by a device would determine what type of batteries need to be used (such as rechargeable or use-and-throw type), as well as the size of battery to be included in the design. If rechargeable batteries are to be used, a recharging facility may be required to be built into the system. In such a case, the designer could go ahead and make the device dual-powered, since the required components already exist in its system design. This is mostly true for an embedded system which is to be stationed at one place for most of the time, or if it is a piece of equipment designed to be always on. An example of this is a gaming laptop.

Flexible thin-film polymer Li-ion battery

Solar power is used in areas where availability of continuous electric power is an issue, as in case of remote data loggers. Energy-harvesting methods are used for mobile applications where there is no space to include a battery, such as in RFID, NFC tag and card readers. Energy harvesting can be done from radiated energy (RFID and NFC) or the audio port (card readers).
 

Criteria to be considered
In general, the most important parameters to be considered when you select a power source are voltage and current capacity. Once this is decided, the next step is to select watt-hour or milliampere-hour capacity. Next is the size of battery, solar-panel or any other source of power. This selection would be constrained by the earlier mentioned parameters.

Cost is also an equally important consideration, especially when we consider the percentage of over-engineering required, like extra high current support.
Size and weight of battery or panel. The size of the battery includes its height, width and depth. These are some of the defining characteristics that are first looked at while selecting the power source for a device. This is based on the targeted size of the device, and the size of the circuitry that has already been designed.
Once a rough idea of the target device size is formed, the designer can source batteries from retailers by selecting the closest dimensions possible out of their inventory.
 

Online vendors such as element14 and Mouser allow engineers to select the height, width and depth they require so as to provide the closest dimensioned battery possible. The same is done while selecting solar panels as well.

Ratings and capacity. For selecting battery as a power source, attention must be given to its discharge capacity (1C and 2C) and energy rating such as (1000mAh or so).

For solar power, you can select small panels by considering their power rating, maximum power voltage, number of cells and other specs. Besides this, care must be taken in providing polarity proofing and recharging facility inside the device itself. Below is an example of battery selection for a microcontroller-based circuit that Knewron worked on, where 3.3V was the minimum necessary requirement and the device was to be run for 5 to 6 hours at one go.


“With approximate peak current consumption of 25mA, we chose a power source of 160mAh capacity delivered by a small LiPo battery that would meet these requirements. Due to its light-weight nature and small form factor, this LiPo battery was the correct choice,” explains T. Anand, principal consultant, Knewron.

Terminals. Connectors are selected based on the need for a compact solution, or even for ensuring that the final device is tightly packed. Most off-the-shelf batteries come with different kinds of termination styles for battery connectors, such as PCB pins, pressure contacts or snap contacts to name just a few. However, certain applications might also require custom-designed battery connectors.
Some of the main factors affecting connector selection is surface-mount technology, compression style, through-hole interface to your PCB, different circuit sizes and battery pack orientation on the product.

Chemical composition. The designer will have to select battery technology based on its chemistry and also ensure that it does not have any substance of very high concern (SVHC). Most countries are very specific about Restriction of Hazardous Substances (RoHS) Directive and the EMI/EMC norms of the equipment. In such cases, even the certification stamp on the power supply/type of components used matters for the final design to be approved.
If we need a compact and portable battery, a Li-ion battery is chosen. These batteries are so common because they are some of the most energetic rechargeable batteries available and have a high energy-to-weight ratio. Comparing the different technologies is beyond the scope of the article, but we have featured two very new technologies targeting wearable electronics in the next section.
Battery technology for the Internet of Things
Internet of Things and wearable electronics both have one thing in common—unorthodox device form factors. In devices like watches, where cell batteries were traditionally used, the current generation of smart watches require something that can pack much more punch. With this in mind, vendors have started coming out with batteries that allow designers to custom-build their own batteries for specific sizes.

Solicore is an embedded power solutions vendor, who has a range of very thin 3D printed batteries with lifetime recharging capability, customisable shape option and high energy density with no toxic materials inside.
This solves the problem of the shape, size and overall form factor for a portable electronic device. The lack of toxic materials makes it an easy choice for use in wearable electronics without attracting the ire of the final user.
Imprint Energy is another firm that enabled the creation of rechargeable zinc-based ultra-thin batteries without the safety concerns of other battery technologies. Considering the importance that manufacturers of wearable electronics place on user experience, this could be a must-have technology for the next generation of miniature electronics.

If you are using an ultra-low-power chip in your design, you stand to gain from the availability of computing chipsets that can function at a thermal design power of just 3W. With such an efficient computing platform, one popular application is to use solar-powered wireless devices for bolstering surveillance through hidden sensors in the field.
 

Ensuring reliable power source designs
A battery requires protection from different electrical conditions such as discharge, overcharge and short circuit. In the absence of adequately protected batteries, your design might turn into a ticking bomb.

The Li-ion battery pack that is used in almost all portable electronic devices, starting from a small mobile phone to a laptop, has two to three main levels of protection.

The first is the IC level of protection that is done by the battery management unit (BMU). This BMU is responsible for managing charging and discharging of the battery, and it is also the primary protection level. So if something happens and the battery goes too high on voltage or current, it would turn the pack off.

Then there is a secondary level of protection that is made compulsory by the Underwriters Laboratories (UL) test standards so as to ensure that the faults left in the primary level can be removed at the secondary level of protection. Many companies work to provide battery protection, especially for the Li-ion batteries, either at the primary level or at the secondary level.

At these different levels, the types of protections available for the Li-ion batteries are as follows:
1. PTC. A secondary level of protection that is used for automatic reset. It is considered to be a special type of fuse that protects against overcurrent and overheating.
2. CID/pressure valve. Again a secondary level of protection that disables the cells permanently in case of high pressure that may be created due to overcharging.
3. PCB protection. A primary level protection that protects against overcharging, overdischarging and even overcurrent.

Like the other types of batteries and cells, solar cells need to be protected too. Solar cells need fuses called solar fuses, which need to be certified either by UL or International Electro Commission (IEC). IEC certification is now more prominent in India. In IEC, if a fuse is tested for 135 per cent on overload, it should continue working till 60 minutes. On the other hand, in UL it should go on at 145 per cent for 60 minutes. Although certification ensures that the solar fuses are safe to be used with the solar cells, there is a requirement of a perfect material for the fuse that would make it more robust to support the cell in extreme conditions.

Industries are now coming up with a melamine-based fuse that can resist even high hot temperatures and low cold temperatures, thus allowing the solar cells to work with the same efficiency all around.
 

New tools to spruce up designing
A number of tools have been introduced recently that can help simplify the design process in numerous ways.
Interactive battery power design tool. This is a powerful tool that helps device developers and designers pre-determine the battery power requirements for the product being designed.
 

This tool helps determine the parameters such as size of the battery required, battery life and energy harvesting, all with respect to the application where the device would be used.

It helps product designers and developers predetermine the battery power requirements for new products. Users are allowed to select a pre-configured product scenario or build their own use case using the defaults provided.

Wattson by Logic PD. Wattson is an application to measure power, to monitor performance and to deliver real-time feedback of the battery-powered device. It helps in minimising power and maximising the battery life for the end product by enabling the engineers to analyse data through a graphical feedback system, without having to use external oscilloscopes or digital multimeters.
Spy on batteries. This is a device that can help to keep a check on the actions of the lithium ions inside a nano battery. This data can, in turn, be used to develop improvised batteries that would last longer, and can also be used to power all applications—starting from an electric vehicle to a small cell phone. As lithium batteries have been so popular, this device can bring a revolutionary enhancement in the market. Designers would not have to restrict their product design because of the battery to be used.

4 New Cars Launching in India in March 2015

4 New Cars Launching in India in March 2015

The Indian automobile industry has become quite competitive in last few years, and the makers who have been able to bring in new products did pretty well despite the slow growth the industry has witnessed. In the first two months of this calendar year, we saw as many as 7 new car launches - Datsun GO+, Tata Bolt, New Mercedes-Benz CLA-Class, 2015 Hyundai Verna, 2015 VW Jetta, BMW i8 Plug-in Hybrid and 2015 Maruti Swift Dzire. In the third month as well, we'll witness four new launches.
Here's a list of all the new cars launching this month
2015 Mercedes-Benz B-Class Facelift
The first product to be launched this month is the updated Mercedes-Benz B-Class, which has received minor exterior updates and new features. On the outside, the vehicle gets new bumpers and LED daytime running head-lamps integrated into the cluster. While the exterior updates are minimal, the cabin receives some significant updates like metal inserts, red stitching on the steering and seats, and carbon fibre finished dashboard. That said, there will be no mechanical changes made to the car.
Mercedes Benz B Class facelift
Launch Date: March 11, 2015
Expected Price: Rs. 29 lakh - Rs. 30 lakh
Hyundai i20 Active
Buoyed by the success of the new i20, Hyundai India is now all set to launch the crossover version of the car in the Indian market. To be called the i20 Active, the vehicle shares its underpinnings with its hatchback sibling. Though to give it a crossover-like appearance, the company has added plastic cladding all over the body, increased its ground clearance and made some changes to the front, rear and interiors of the car.
Hyundai i20 Active
The front-fascia of the car gets a new skid plate, new bumper with large fog lamps, projector head-lights with daytime running lamps etc. The rear profile too receives quite a few changes like new bumper with circular reflectors and silver skid plate. The vehicle also gets a roof spoiler, roof rails and bigger alloy wheels.
Launch Date: March 17, 2015
Expected Price: Rs. 5.80 - Rs. 6.00 lakh
MINI Cooper S
BMW India that had launched the new-generation of the MINI 3-door and 5-door in India in November 2014, is now planning to launch the more powerful S trim of the car this month. Powering this vehicle is a four-cylinder TwinPower turbo petrol engine that is good for 189bhp and 280Nm. This engine will come mated to a six-speed automatic transmission.
MINI Cooper S
Expected Launch: March 3rd Week
Expected Price: Rs. 40 lakh
Renault Lodgy MPV
Renault India that has already unveiled the official picture of its upcoming 7-seater MPV - the Lodgy - is now planning to launch it here by the end of this month. The MPV is likely to share its underpinning with other Renault products that are on sale in India. The vehicle will use the same 1.5-litre, 84bhp diesel that powers the Duster. Whereas, the petrol engine could be the Scala's 1.5-litre, 98bhp engine.
Renault Lodgy MPV
Expected Launch: March last week
Expected Price: Rs. 6.50 - 9 lakh

Motorola Moto Turbo With Snapdragon 805 SoC Now Available in India

motorola_moto_turbo.jpg 

The Motorola Moto Turbo is now available to purchase in India after being listed for pre-order earlier this month. The smartphone is priced at Rs. 41,999 for its 64GB Ballistic Nylon variant, and is available via Flipkart, the company's exclusive online retail partner in the country.
The Moto Turbo is a variant of the Motorola Moto Maxx, which itself was the global variant of the Motorola Droid Turbo exclusive to US mobile carrier Verizon.
(Also see: Motorola Moto Turbo vs Samsung Galaxy S6 vs HTC One M9 vs Xiaomi Mi Note)
The new Motorola Moto Turbo comes with some top-notch specifications, such as a QHD display - which has been seen on smartphones such as LG G3 and Samsung Galaxy Note 4, and is perhaps the highlight of the device. It features a 5.2-inch QHD (1440x2560 pixels) AMOLED display offering a pixel density of 565ppi, much higher than the 5.5-inch LG G3 at 534ppi and 5.7-inch Galaxy Note 4 at 515ppi. The screen also includes a Corning Gorilla Glass 3 protective layer.(Also see: Motorola Moto Turbo vs Motorola Moto Maxx)
It features a massive 3900mAh battery, the biggest amongst most high-end phones such as Sony Xperia Z3, Samsung Galaxy S6, Samsung Galaxy Note 4, and even the Moto X (Gen 2). The company notes that the smartphone can deliver up to 48 hours of mixed usage. The Moto Turbo also supports Motorola's Turbo Charger, a new accessory from the company stables that is said to provide 7 hours of battery life in just 15 minutes of charging.
The smartphone is powered by a quad-core Qualcomm Snapdragon 805 processor clocked at 2.7GHz coupled with an Adreno 420 GPU and 3GB of RAM.
(Also see: Motorola Moto Turbo vs Motorola Google Nexus 6)
The Motorola Moto Turbo sports a 21-megapixel rear autofocus camera with f/2.0 aperture and dual-LED flash. The rear camera comes with features such as slow motion video; burst mode; auto HDR; Panorama, and tap to focus. Meanwhile, it can also record 4K videos at 24fps. It includes a 2-megapixel front camera. The Android 5.0 Lollipop-based Moto Turbo features water-repellent nano-coating. It measures 143.5x73.3x8.3mm and weighs 166 grams.
Connectivity options on the Moto Turbo include 4G LTE with LTE Cat. 4, Bluetooth, Wi-Fi, Micro-USB, and GSM/ EDGE/ HSPA+. The smartphone comes only in one storage variant - 64GB.

A Smart Twist to the Power Grid

Whether the coming generations will have enough energy to power lights, or have to resort to oil lamps and wax candles depends on how smart our power grids become—and fortunately they are gearing up quite fast, in cohort with the Internet of Things, to manage energy requirements smartly

Janani Gopalakrishnan Vikram



Despite the fact that the current generation of devices and appliances, including lights and fans, are smart and capable of conserving power to a large extent, there is still a clear shortage of power. The issue is discussed widely in newspapers and manifested inconveniently as long power outages. What is the way out?

“The smart grid is a concept that will keep all the lights on not only for this generation but the next generation as well. It would not only give us independence in our energy requirements but will also enable a reliable source to keep our ever-increasing energy demands in control. Technically, a smart grid is a bi-directional grid which facilitates an integration of all players in the energy ecosystem in a reliable, economical and sustainable model,” says Reddy Karri, executive vice president, Symphony Teleca Corp.


Basic view of a smart grid
Satish Mohanram, technical marketing manager, National Instruments, India, explains, “A smart grid is termed so because it can understand the load and supply behaviour and manage the same in the most optimised fashion with very less or even no manual intervention. It delivers higher performance, lower cost and essential new features such as seamless integration of loads, grid-level energy storage and distributed renewable energy generation.”
The smart grid, networked grid or digital grid primarily aims at balancing limited power-production capacity and increasing demand for energy, by reducing losses, increasing efficiency, optimising the demand distribution and integrating small and large renewable energy sources like solar and wind. “Structurally speaking, the smart grid is a network between the generation plant, transmission and distribution stations, which in turn extends to smart meters in homes, businesses or factories,” says Shailesh Thakurdesai, business development manager, Microcontrollers, Texas Instruments (India).
Making a grid smart
“In my opinion, the scope of smart grid is very vast, as there are many details that impact design from grid infrastructure to end nodes. To deploy a smart grid, it would be very important to first understand and establish the scope of the project. Predominantly, the scope of a smart grid project will aim to achieve some of the following: reduction of distribution losses, achieving bi-directional response for real-time control, increasing overall capacity, managing and controlling for peak demand and multi-tariff implementation. Based on this objective, one can proceed to evaluate the current technology and topology to be used. On assessing this, a pilot project can be conducted to see the actual results of the smart grid,” says Thakurdesai.

Typically, the evolution of a smart grid happens organically across four areas: generation, transmission, distribution and retail.



At the generation level, one of the main benefits of the smart grid is that it enables distributed energy production. Theoretically, it enables even individuals to be contributors to the power grid. If you have a solar panel on your terrace and are producing more power than you consume, you can contribute that to the grid and get a discount on your next bill. Although that is still not very common, the smart grid has definitely made it possible to integrate several small producers of electricity, including wind and solar power. This is done using advanced power electronics that help to combine DC storage with renewable energy resources, by mitigating the variability.
Transmission too is made smarter in a modern grid using a wide network of sensors and control tools that avoid, detect and overcome faults. Advanced power electronics are being used to ensure normal voltage at all times, increase line capacity by series compensation and ride through smoothly when faults occur or large motors start.
The distribution of power to sub-stations is perhaps the area of the grid most impacted by smart technologies. By studying consumption patterns and planning distribution accordingly, it is possible to manage demand-supply vagaries. There are also several technologies developed for this crucial segment of the smart grid. One recent development, for example, is conservation voltage reduction (CVR), a set of technologies that lowers voltages on distribution circuits to save energy.

At the retail level, utilities use automated metering infrastructure (AMI) with smart meters that help customers to understand their own consumption patterns and empower them to alter it positively using schemes like happy-hour discounts.
A job for electronics and communications...
As you would have surmised by now, there is a lot of work for electronics in a smart grid, from sensors, reclosers and phasor measurement units (PMUs), to data concentrators and power line communication (PLC) systems, wireless chips and smart meters with bidirectional communications. Most of these electronics are ‘smart’ in the sense that they can communicate with each other and a central server through a robust communication backbone, thereby enabling collection of data, their analysis and actions based on that. The backbone of all this smartness is therefore ‘big data’ sitting on the Cloud and integrated software solutions that support decision-making.
Grid infrastructure. There are components from data concentrators to PLC systems and wireless chips embedded in grid infrastructure. The data concentrators, for example, help to aggregate data from a certain number of meters and send them to the utility servers. These concentrators would generally need some wireless communication capability to acquire data and communication from the concentrator to the utility servers via Ethernet, GSM, GPRS, WiMAX or telecom networks.
Similarly, sub-station control is also an electronics-intensive job today. Microprocessor-based relays are used for online monitoring and control replacing older SCADA systems; traditional switchboards with panels, switches and lights have given way to graphical user interfaces that can be accessed through PCs. Sundry sensors are used to collect information on the performance and health of station equipment including transformers and circuit breakers.
Companies like TI, ADI and Intel offer a range of energy metering ICs, power-line communication systems, data concentrators, microcontrollers for home-area networking, in-home display systems, smart meters, IoT gateways and so on.
TI offers various ARM-based system-on-chip and system-on-module solutions and software for the smart grid, as well as PLC and data concentrators. Intel offers a series of chips with remote management capabilities. Their active management technology implements a special circuit in Intel chipsets, which enables the system to be remotely accessible even when it is powered off or the software is corrupt, using an out-of-band link. The cross-platform solution can apparently be used with energy generation equipment, control systems and home energy gateways. A range of Intel Xeon, Intel Core and Intel Atom processors are used across grid infrastructure.
Field-programmable gate arrays (FPGAs) are also used widely in smart grid implementations. They offer much-needed flexibility and integration in a diverse system, and in cases such as NI’s solution, they can be customised as well as upgraded in the field, without changing the hardware, to behave as a number of different ‘personalities,’ such as PMU, power quality, smart switch, recloser, etc.
Test and Measurement. The sensing aspects of a smart grid are basically the preserve of the T&M world, which constantly improves capabilities with better embedded instrumentation systems. “Developments in the T&M sector have enabled better sensing—speed, accuracy, synchronisation across long distances; better communication—high-throughput, reliable long-distance data transfer and field upgradeability,” says Mohanram.


Components in a smart grid; Concept (Courtesy: National Instruments)
Communications. The ability of the nodes to communicate and coordinate with each other and a central system makes a grid smart, or otherwise. Both wired power line (PLC) and wireless (Wi-Fi, ZigBee and Sub-1GHz) communication are used in a smart grid. The 2.4GHz IEEE 802.15.4 standard is quite popular for wireless communications in smart grids, due to its low data rate but extremely long battery life and very low complexity. Several network protocols including ZigBee, 6LoWPAN, WirelessHART and ISA100.11a run on 802.15.4-based networks. Thakurdesai shares that, “In smart substations, the new standard for communication is IEC 61850 and for PLC, standards like Prime and G3, which are certified with TI products.”
Smart meters. Smart meters can be seen as the face of the smart grid, what consumers see. These intelligent bi-directional devices help both the consumer and the utility. The former can understand their consumption patterns and alter it effectively, so as to conserve power and capitalise on utility-given discounts. Utilities, on the other hand, can use it to effectively plan their distribution, control power consumption, understand consumers, avoid power theft, implement variable pricing and so on.
And big data too…
“As the smart grid evolves with sensors distributed across the grid collecting huge amounts of data, drawing accurate and meaningful conclusions from such a large amount of data is an interesting problem, and the term Big Data describes this phenomenon,” says Mohanram. The smart grid too crunches huge amounts of data coming from analogue devices. “We call it Big Analog Data solutions, described using a three-tier solution architecture. The first two tiers are what inherit from the measurement world, namely, the sensors and the system nodes. Once through tier 2, the data moves past ‘the edge’ and usually hits a network switch and then a server where it can be stored and undergoes further analysis. This is where customers realise great value from the data they’ve acquired, and where many engineering, scientific and business decisions are made. This tier also includes the Cloud, a growing and appealing IT infrastructure that powers the smart grid,” explains Mohanram.
The data captured from the grid can be analysed and put to use at various fronts:1. Analysis of AMI data with a customer-focus can help in theft detection and revenue protection, demand-response management, happy-hour pricing and other variable pricing schemes to make customers cooperate with utilities to solve their problems. Solutions like C3, AutoGrid, Opower, GE’s Grid IQ Insight platform and Siemens’ eMeter analytics system can help in this.
2. At the utility level, the AMI data is used for outage management and operational improvements.
3. Solutions from companies like Oracle, SAP, Silver Spring Networks, Siemens/eMeter and ABB/Ventyx help in monitoring transformer health by combining AMI and other grid sensor data with weather and temperature data, asset management system data and other information.
4. With a combination of synchrophasor deployments, a study of satellite images to predict the next storm, its impact on solar and wind power generation, etc, renewable energy planning systems from grid industry players and IT vendors like IBM help plan distribution better.
5. At the strategic level, the ability to predict is a positive outcome of big data. Of course, the power sector is always ravaged by the vagaries of nature, and the eccentricities of customers, and it is impossible to accurately know things such as how fast customers will adopt rooftop PV or plug-in electric vehicles, how regulatory and economic developments will impact finances, etc.
Standards bring in order, growth
Karri says, “There are multiple standards governing the space. The key application of these standards we believe and strictly adhere to are in the interoperability space. The kinds of data communication protocol for the energy sector that Symphony Teleca implements include DLMS (preferable) and ANCI C12.22, and when the hardware systems (meters, concentrators, et al) are interoperable and software interoperability is needed, we prefer the CIM/ multispeak approach.”

In emerging spaces, where there is no clear winner, it can be confusing what standards and protocols to choose for your applications. The International Electrotechnical Commission’s Smart Grid Standards Mapping Tool (http://smartgridstandardsmap.com/) can come in handy at such times. It helps you find the best fit for your needs, and covers not just their own standards but all leading ones including IEEE’s.
Watch out for smart moves in the power grid
Thakurdesai says, “One of the main trends one can look out for is the integration of renewable energy systems into existing grids catering to higher demand and improving efficiency.”

“The world is heading towards a convergence, so we believe there would be an improved involvement of the consumer, taking an increased interest in smart grid cost-benefit analysis, forcing smart grid project leaders to achieve a higher standard for investment justification,” adds Karri.