calories vs Calories?
832018
Actually the above answer (and source) is incorrect.  In most situation there is a difference.  "C"alorie, in the capital sense is meant to denote a kilocalorie, or 1000 "c"alories (in the lowercase sense).  Every Calorie on the back of the food boxes are indeed 1000 calories.\n\nThe problem is that these two terms are often misused, and misrepresented.  A calorie in laymans terms is actually a kilocalorie, but rather than saying all of that, and making it a markedly more confusing term, it was simplified to Calorie.\n\n\n\nTiger Striped Dog MD
865553
walking burns calories. just slow...\n\ndiet and exercise....
939080
Nope, an apple has good nutritional value and enough calories to give you some energy along the way.  Celery on the other hand takes more calories to digest than it's worth- it's basically non digestible and 0 calories, plus you burn a few calories chewing it up and processing it.
749965
A food calorie is 1000 calories.  \nAnswer = mass times vertical distance times gravitational force.
306258
each gram of fat is about 9 Calories, while each gram of Carbohydrate or Protein is 4 Calories.
793241
It's not actually based on calories alone. It is based on fat, fiber, and calories.
853385
Calories come from various sources...  protein (meats, poultry, fish, cheeses, etc.), carbohydrate (fruits, vegetables and grains), fat (olive oil, margarine, butter).  All calories "count" but eating a high percentage of your calories from fat, regardless of the type, is unhealthy unless you're on a low-carb diet.\n\nMany people say, "A calorie is a calorie," but of late they are finding that protein calories burn differently than processed carbohydrate calories.  People attempting to lose weight find they do better by eating fewer "white" carbohydrates like bread, potatoes, pasta and rice because your blood sugar level stays more stable.
1069058
The nutrition books are correct-- 3500 calories per pound of fat is not an absolute amount, but it's very close. However, your math is correct, too. Here is the story. \n\nWhen we burn fat, or other nutrients, heat is produced, which is measured in calories. As you note, each gram of fat generates 9 calories, and 454 grams equals one pound. But a pound of fat is not all fat. It's about 10% water. All of our body tissues--fat, muscle, bone, skin--contain some water. And water has zero calories.
200809
I see that number, "3500 calories in 1 lb of fat" in several sources, but I am not sure whether that is calories or Calories.  Most people are sloppy about the distinction, so I am guessing they really mean there are 3,500,000 calories per pound of fat.\n\n1 calorie = 4.184 Joules.\n\n60 minutes in an hour, 60 seconds in a minute.
1185035
It contains calories.  Too many calories, you gain weight.
983251
800-1000 calories is not starving. if you arent hungry your body is fine. just dont lose too much more.
232517
how much you weigh has no factor on it. your intake of calories should be less than amount of calories you burn. start paying attention the the nutrition facts chart on food packaging, the calorie amount in particular. it's also wise to exercise using something that calculated the amount of calories burned. if the total amount burned is more than the amount taken in - congrats! you're on your way to losing weight. but don't rush it, it's just as unhealthy to lose too much too fast (like 50lbs in one week - not good).
995696
Its the same unit of measurement. Its just that kilo-calories is a more scientific way to say it. But now more nutritionist and scientists have been using kilojoules as a more accurate energy expenditure measurement.
461261
A calorie is a unit of heat.  When we say a given food has X number of calories per serving, we are talking about how much fuel is in it for your body.  If you eat normally, and neither gain nor lose weight, you are an "average" person on an "average" diet.  To lose weight, you must eat less than YOU need, whether or not less than the average person needs.  For example, my body is very slow to metabolize food, and loves to store fat all around it.  This is partly genetic, as my German ancestors had to endure long, cold winters.  It is also from not getting enough exercise, for a variety of reasons.  And finally, it is a snowball thing: you eat more than you burn for many years, it gets harder to burn more than you eat.\n\nSo when you are young and the differences are small is the time to get a handle on just how you can eat well and exercise well and get your body into its best configuration possible.  You will probably need the help of some older and wiser heads that know about nutrition, exercise, and your particular needs.  If your parents have a handle on the third, they will surely help you find what you need about the first two.  If you are still in school, there is the school nurse and/or nutritionist and the gym teacher.  (Doesn't matter if you hate her, but get her help anyway. I hated mine, and now I weigh 300 lbs.!)\n\nThe younger you are when you get yourself under control, the more successful you will be in all fields, not just in looking good!
1144052
Well not quite...\n\nThe following facts are things that you need to first understand.\n1 gram of fat contains 9 calories\n1 gram of carbohydrates and protein contains 4 calories\nThere is 454 grams in 1 pound.\n\nSo for the first question, 1 calorie is equal to 1 fat calorie.  Like someone else said no difference.  Its a unit of energy/heat.  The difference between 1 calorie of carbohydrate and 1 calorie of fat is that it take 1/4 of a gram of carbohydrate to generate 1 calorie and it takes 1/9 of a gram of fat to generate 1 calorie.\n\nFor the second question, it take 1 pound of fat generate 4086 calories.  454 grams / 1 pound  x  9 cal / 1 gram of fat = 4086.\n\nWhy is it not 3600 calories?  When you exercise, you are not only burning carbohydrates but also fat (sort of a simplification, alot of it depends of type of exercise, during of exercise, etc).  So when we say you need to burn 3600 calories to lose 1 lb this is making a reference to the fact that we are burning fat and carbohydrates.\n\nHope this help and understable.
1103835
It is impossible to know what calories are in what foods as the foods use different ingredients so it will vary from place to place.\n\nYou can 'guess' by getting the list of ingredients and then listing how many calories they have, but its probably not accurate.\n\nSome restaurants have calorie list of their foods by request.
93487
One gram of Fat on burning in your body gives you 9 calories while carbhydrate only 4 calories  Carbohydrates are stored in your body as fat.