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Ok, I have been wondering about this for a while. Take this box of cereal. It provides 7 grams of fat and 200 calories. The calories from fat are 60. Does that mean that if I burn 60 calories I have burnt off the fat? Maybe I am stupid, but it seems to make sense. If I am wrong, then tell me how I can burn off a gram of fat.

2006-09-19 12:08:40 · 5 answers · asked by nxtmoodswingn7 2 in Health Diet & Fitness

5 answers

You are confusing 'fat you eat' with 'fat in your body.' It's not the same thing...

When you eat, everything that gets absorbed by your body contains 'energy.' The body takes 'energy' and uses it. Whatever it can't use, it turns into fat. Body fat, that is. Even if you eat straight butter, it doesn't just 'smear itself' onto your backside. It too, is energy that must be absorbed and transformed.

We measure this energy in Calories. (One calorie, btw, is the ENERGY it takes to heat 1l of water 1 degree centigrade.)

Fat has about twice as many calories or Energy as protein or carbs.
1g Fat= 9 calories
1g Protein=4 calories
1g Carbs=4 calories
btw. 1g Alcohol =7 calories (which is why that no-carb Vodka will still blow your diet)

So, if your cereal contains 200 calories and you burn 60, then 140 will get converted into body fat. Result: You've just gained 15.6grams (140/9) of body fat.

To survive, the body doesn't care that much whether it gets its energy in the form of a tub of lard or a truckload of Lettuce. But if you want to be healthy (as opposed to just survive) the ratio is also important. The USDA recommends the following diet for an adult:

2000 calories per day
18% protein, 29% fat, 53% carbohydrates

If you exercise, you can lower your fat and increase your protein and carb levels. If you do not exercise, lowering your fat level can lead to muscle shrinkage, fatigue and a slowing of the metabolism.

2006-09-19 12:46:24 · answer #1 · answered by Bob B 2 · 0 0

There's a pretty complicated answer to this question. The simple answer is no. When you eat those 60 calories of fat, they don't immediately become 60 calories worth of fat stored in your body. Some of that fat is probably converted into sugar that your body will use as energy if you haven't eaten in awhile. If you're already full of sugar, some of those other 200 calories might be converted into fat as well. If you have an excess of fat calories, your body also needs to use about half of them just to store the rest of it as fat. So it's pretty hard to determine exactly how you can burn those exact 60 calories of fat or even if you need to.

2006-09-19 12:27:47 · answer #2 · answered by bjfrancois5 2 · 0 0

You don't necessarily want to burn the fat if your body needs it. You need a certain amt of fats, carbohydrates, and protein every day to stay in good health. Your body, when it does need energy burns nutrients in the following order: carbohydrates 1st; fats 2nd; proteins last. This is a generalization and isn't true 100% of the time but it's a very good rule of thumb. So the first 60 cal you burn and going to be the carbohydrates calories.

2006-09-19 12:31:41 · answer #3 · answered by college kid 6 · 0 0

3500 calories = 1 pound of fat.

Your body converts all your BODY fat in to calories to use as energy and that is how you burn calories, and LOSE fat.

You cannot chose what group, whether calories from food fat, protein, carbs, whatever you have consumed that you would like to get rid of. Your body does that.

2006-09-19 12:51:13 · answer #4 · answered by Anonymous · 0 0

NO , the fat takes longer to digest, to burn fat you need to be doing something aerobic (with oxygen). You may not necessarily get fat from eating fat but from energy in is greater that energy out .

2006-09-19 12:33:09 · answer #5 · answered by alien8zano 2 · 0 0

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