14 votes

Is eating a meal with 2000 Calories at once any different from eating 4 times at 500 Calories?

There have been quite a few studies on the influence of meal frequency, but usually they focus on weight loss. I could find one pilot study comparing people receiving either one or three meals a day, ...
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  • 6,998
11 votes
Accepted

Can a calorie be neither protein, carbohydrate, nor fat?

Ethanol is caloric and is neither a carbohydrate, protein, or fat.
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  • 3,153
10 votes
Accepted

What is the difference between cal and Kcal?

Answer: 1 Kilocalorie equals 1 Calorie. Note the capital "C". 1 kilocalorie equals 1000 calories. Note the lowercase "c". So Calories and kilocalories are pretty much the same thing. Kilocalories ...
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  • 2,952
7 votes

What is the difference between cal and Kcal?

Generally speaking, 1 kilocalorie = 1000 calories (definition here). But the confusing part is explained here: The energy used in physical activity and the energy stored in foods is actually given ...
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7 votes

Does BMR adjust and decrease in response to calorie restriction diets?

First of all, the 1000-2500 calorie statement from the answer to this question is not due to formula inaccuracies (only 0.5% of the variation were attributed to that), but is the actual measured BMR ...
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  • 781
7 votes

Can food make you put on more weight than it's own weight?

You seem to be equating food weight with body weight, and they are not directly related. Yes, if you eat a pound of something, you will immediately weigh one more pound, as your body has not had a ...
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  • 6,524
6 votes

Why are carbs said to be fattening?

Note: This explanation does not concern itself with body health, wellbeing, the ability to follow/sustain the diet short/long term, impact to nervous system or the psychological impact of satiety that ...
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  • 1,083
4 votes
Accepted

Does BMR adjust and decrease in response to calorie restriction diets?

Yes it can. As a general statement, I'm not sure how much it can go down before it's a problem, which is what I think you are asking as your second question. Starving to death might be seen as this ...
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  • 1,836
4 votes
Accepted

Calorie content of foods

Probably the most comprehensive and practical tool to check for calorie content of foods is USDA Food Composition Database. You can find calorie content for baked chicken, fried chicken, breaded ...
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  • 15.6k
3 votes
Accepted

How do you measure the amount of calories with unlabeled foods?

If you can weigh each part of the meal, then you can look up the calories. There are many apps for this. If you can't weigh it, then a guess can still be made on the approximate portion size. If ...
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  • 13.2k
3 votes
Accepted

I am confused about this hot sauce nutrition label

Per 100 gram: Sugars = 20 g x 4 kcal = 80 kcal Fiber = 2 g x 2 kcal = 4 kcal Protein = 1 g x 4 kcal = 4 kcal In total: 88 Kcal (368 kJ) and not 10kJ as stated. Carbohydrate total is also wrong. It ...
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  • 15.6k
3 votes

What is the impact of electrolyte intake on weight loss?

You asked for any evidence, and we have this paper, Increased salt consumption induces body water conservation and decreases fluid intake which is interpreted in this newspaper article. Essentially, ...
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  • 13.2k
3 votes

Can the body be shocked into a faster metabolism?

If a person's body is in a low-metabolism state induced by starvation or restricted calorie intake, then an increase in the calorie intake will allow a raised metabolism. The natural lower limit to ...
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  • 416
2 votes

Why are carbs said to be fattening?

The reason why some people say this is because consuming carbs causes insulin levels to rise and insulin inhibits fat metabolism. In the opposite case when type 1 diabetic patients don't take insulin (...
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  • 2,228
2 votes

Why are carbs said to be fattening?

Scientists still aren't sure, but it seems carbohydrates may be easily converted into fat, depending on the form, or promote fat storage through stimulating insulin. Nutrition Science and ...
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  • 4,896
2 votes

Why are carbs said to be fattening?

Carbs are not necessarily fattening as many studies comparing low carb diets to one recommended by the FDA with a higher calorie content going to carbs, have found negligible differences in fat loss. ...
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2 votes

Why does the calories from fat to total calories ratio not match the grams of fat to grams per serving ratio?

You drew the right conclusion! Fat does embody more calories (about 9 kcal/g) than the same weight of carbohydrate (4 kcal/g), protein (4 kcal/g) or ethanol (7 kcal/g). These are only approximate ...
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  • 391
2 votes
Accepted

How should I account for a blood donation while couting calories/trying to lose weight?

You might as well ignore the calories of food given to you in such a situation: Burns Calories: People burn approximately 650 calories per donation of one pint of blood, according to the ...
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  • 6,757
2 votes

Intermittent Fasting: Why is exactly *zero* calories special?

In summary, intermittent fasting could help decrease appetite and thus make weight loss easier for some people, but there is no convincing evidence that it would stimulate catabolism more than other ...
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  • 15.6k
2 votes

Does the same amount of calories have different result on people

The amount of calories someone consumes is just one side of the coin - you have to consider how many of those calories they are actually expending. The most visible element of that is the amount of ...
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  • 1,252
2 votes
Accepted

Does the same amount of calories have different result on people

There are various processes that influence weight gain based on calorie intake. It is in general clear that a severe reduction in calories (well below your body's basal needs) reduces weight in the ...
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  • 136
2 votes

Can a calorie be neither protein, carbohydrate, nor fat?

A calorie is a measure of heat given off by burning a substance. This article shows the origin of the term in the context of nutrition https://academic.oup.com/jn/article/136/12/2957/4663943 One of ...
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1 vote

Has the calorie content of soda (in US) increased over the years?

I am satisfied that the calorie content of soda has been fairly constant over the past few decades. A 1992 newspaper article says "a 12-ounce can of 7-Up, Sprite or Coca-Cola contains 150 calories". I ...
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  • 111
1 vote

How many calories does it burn to regrow a liver?

To get the answers started, though admittedly with a very rough estimation, I'll add my own idea of a lower bound of calories burned to regrow an entire liver. Because basic laws of thermodynamics ...
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1 vote
Accepted

Weight gain as a function of calorie intake minus calorie consumption

[I]s weight gain a one variable function of calorie intake minus calorie consumption? Yes. It stands to reason because why else is the recommended daily calorie intake always talked about in ...
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  • 5,852
1 vote

Is there any way to increase self-burn calories rate?

It is extremely difficult to measure TDEE (Total Daily Energy Expenditure) - the calories one's body uses in a day - because of how complex the body works, how many factors effect it, and how ...
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1 vote

What are the food that can be eaten without much calories intake? (to combat hand-to-mouth pattern)

All food has calories; it is just a matter of what one's have the lowest. Celery is high in water and low in calories, as is cabbage. For some more low calorie food ideas check out this website: ...
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  • 11
1 vote

How to read U.S. Dietary Guidelines Tables?

EDIT: Question: Why the Daily Amount of food from each group does match up to the weekly recommended amounts? Answer: The daily amount is for calories, which means that for individuals who consume 1,...
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  • 15.6k
1 vote

Why would the following nutritional scenario lead to hunger etc?

10 grams protein is way too little. You need about 46-56g of protein per day to feel full. From Harvard.edu: ..."protein helps you stay full for longer"... http://www.health.harvard.edu/blog/extra-...
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  • 481
1 vote

Could refugees live off of oil and multivitamins (and maybe some protein)?

No. Protein isn't just a calorie source. It's an essential macronutrient that participates in a huge range of metabolic processes. The protein-free diet you're proposing is likely to cause protein-...
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  • 1,970

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