Why Calories Are King

1. What is the most common misconception about calories?
I’d say it’s the belief that calories from different foods are worth more or less. It’s true that fats are higher density in calories than protein or carbohydrates. But in the end, all that matters is whether your body needs those calories or not. If your body has met all of its immediate energy and energy store needs, those extra calories will be turned to fat whether they came from a tomato or a Tootsie Roll. You could eat no junk food at all, but if you wolfed down 3,000 calories worth of fruits and vegetables, you’d still gain weight. That’s why it’s so important to pay attention to calorie totals, both of what you eat and what you burn. If those numbers are in line, you should be fine. Of course, it’s still essential to get calories from a balanced diet so you get all the nutrients you need.

2. Suppose someone has cut calories, but still hits a plateau. Is it possible that she may need to eat more calories to lose weight?
It’s possible. If you’re not eating enough, your body sort of panics and goes into what’s known as starvation mode, slowing down your metabolism and fat-burning processes. If it’s being starved of calories, it has to hold onto all of the energy stores and calories that it can. Think of your body as a furnace. If there’s not enough fuel, the fire just simmers for a long time without really burning hot. If you’re not eating enough calories to match your activity level, your body just simmers and no real progress is being made. The danger is that people react to this type of plateau by eating even less, which of course just makes the problem worse and harder to recover from. It’s a horrible cycle that can lead to real problems.

3. How many calories do people need to eat?
That’s the million-dollar question, isn’t it? You’re going to hate me when I say that it depends. There are three factors involved: Your weight loss goals, your Basal Metabolic Rate (the number of calories your body burns via normal, everyday functions), and how much exercise you get. First, calculate your BMR. Next, consider how much activity you get. Add the calories you burn through activity and exercise for one day to your BMR. This is your baseline for daily calorie needs. To lose 1 pound per week (if that’s your goal), you’d simply eat 500 calories less than this number each day. Whatever your baseline is, more than 1,000 calories per day below that (resulting in 2 pounds lost per week) is not a good idea. Your body needs enough nutrition and energy to deal with whatever exercise level you choose. At bare minimum, no matter what, I strongly urge women to not drop below 1,200 calories daily and men to not drop below 1,500 calories daily. Any lower than that and starvation mode – or worse – will almost always kick in.

4. Why do people still need to get calories from carbs? Can’t more protein make up for it?
Each type of nutrient (fat, carbs, protein) is an energy source. Each has the same end result – they’re either used or eventually stored as fat. But each is processed in a unique way and fills a very specific need. Let’s focus on carbs versus protein, since this is the focus of a lot of dieting these days. Both carbs and protein work on different assembly lines in the same factory. A minimum amount of carbs is essential for immediate energy needs and to metabolize fat properly. People seem to forget (ironically) that carbs are also your sole source of energy for the brain. No one else in the factory can do this job. Proteins can provide energy too, but they have more value if used in other ways, like building and repairing cells, producing antibodies to fight disease, and helping out with other body functions. If not enough carbs show up for work, proteins are pulled off of the jobs they’re best at to cover those energy-producing functions. Meanwhile, the work proteins were supposed to be doing goes undone. The factory suffers.

5. What rule of thumb should be used in allocating calories?
Since menus and eating realities change daily, average ranges work better than absolute percentages. For the most part, your calorie intake should come from:

40-65% Carbohydrates
10-35% Proteins
20-35% Fats

It’s important to try to meet these ranges every day to fulfill your energy and nutrient needs without creating more fat storage. But if you miss these ranges periodically, don’t stress too much, just keep an eye on it and work on improving your habits. Trying to match an exact number – or even a range -- every single day is unrealistic. If your results are within these ranges over time, that’s what matters.

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Member Comments

Calorie information is important. But have to always remember, 2 items may have the same calorie value, but not be equally as nutritious. Have to look @ the whole food package! Report
Thanks Report
thanks Report
Thanks Report
Unfortunately we need less calories as we age. Bummer! Report
Great Article! Thanks for sharing!!!!! Report
Very informative! Thanks for sharing! Report
I count calories as it gives me the option to eat any food type I choose & that in turn means if I eat a wide variety them I'm less likely to miss out on any micronutrients. Plus I'm practicing portion control which will help me long-term when it comes time for maintenance. I do believe we are genetically disposed to eating different foods based on ethnic culture & seasonal availability. However now we move around more & there are lots of people w/ mixed heritage so perhaps some extra weight comes from eating (for example) a Salvadorian breakfast, Thai at lunch & Italian for dinner. Perhaps our body doesn't quite know how to handle it. I like eating simple meals or snacks. That makes tracking easier too. Report
Great info! Thanks! Report
Total and utter nonsense?

Not really, because the body does know the difference between carbs, fat, and protein. Eat too much protein and there will be health issues. No carbs...brain fog sets in. Too much fat and the heart will show it soon enough. It is sad that some folks will continue fighting with ineffective tools. There is a lot of information on the internet; some of it is wrong. Test the facts with a health care professional. Don't trust the internet to be accurate: anyone, anywhere, can post anything on the internet. It doesn't have to be truth; there are few consequences for posting false information on a system where everyone can be anonymous. Again: ask you health care provider.
Interesting article Report
well...I liked it. Report
Good article. Report
Total and utter nonsense.

So where exactly is the body's calorie sensor? A calorie is a calorie right? So how does the body sense and process protein calories? How does it sense and process oil calories? How does it sense and process carb calories.

A calorie is a unit of heat given off when something is burned in the lab. It is a PHYSICS measurement, it has NO MEANING to the body! So a piece of paper has calories (it will burn). How much does it affect your weight if you eat that piece of paper? It has calories, so calories in vs calories out right? The body hasn't a clue how many calories you have eaten. EVER!!! It doesn't "count" calories, so why do you?

Do carbs affect your insulin production? Yes. How about glycemic index? Hmmmm... How much does glucose affect your insulin? How about fructose? Do you even have a clue what fructose is and how the body processes it? Do you know how much fructose you consume every day?

How about long chain carbs? Whaaaaat? What the heck are those? (glucose)

Does fat (oil) affect your insulin production? No.

Does Protein? Yes. Does protein affect your insulin as much as the same weight in carbs? Why does insulin matter? Ask a diabetic. Are you fat? Then you are already a diabetic. Sorry for the bad news.

So 500 calories in sugar is the same as 500 calories of protein as 500 calories of fat? As 500 calories of cardboard?

But a calorie is a calorie right? Calories in vs calories out right?

Listen to this junk at your own risk. Or educate yourself. The information is out there.

If you are fat then you already have insulin resistance, you are already diabetic. Your body has been dealing with TOO MUCH SUGAR for a long time. How do I know this? Because INSULIN takes excess sugar and signals your body to make fat. So if you are fat, you have been eating too much sugar (carbs) for a long time. Diabetes here I am.

You CANNOT LOSE FAT if you have high levels of insulin, if you keep pouring carbs into your stomach. Insulin prevents burning fat when sugar is in the blood... Report


About The Author

Becky Hand
Becky Hand
Becky is a registered and licensed dietitian with almost 20 years of experience. A certified health coach through the Cooper Institute with a master's degree in health education, she makes nutrition principles practical, easy-to-apply and fun. See all of Becky's articles.