What exactly are calories?
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A calorie is a unit of measurement for energy. The unit's name is French and derives from the Latin calor (heat). In most fields, it has been replaced by the joule, the SI unit of energy. However, it remains in common use for the amount of energy obtained from food. Many different definitions for the calorie emerged during the 19th and 20th centuries. They fall into two classes:\n\nThe small calorie or gram calorie approximates the energy needed to increase the temperature of 1 g of water by 1 °C. This is about 4.184 J. \nThe large calorie or kilogram calorie approximates the energy needed to increase the temperature of 1 kg of water by 1 °C. This is about 4.184 kJ, and exactly 1000 small calories.
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It takes 3,500 calories to equal one pound of body weight.  Generally, dieters dump an average of 1,000 calories per day in an effort to lose 2 pounds of body fat per week.  You should never go below 1,200 calories per day without your doctor's approval. If you are in need of losing a lot of weight, you may require more calories, so you'll definitely need to check in with your doctor before proceeding on any diet plan.
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The number of calories *is* the total number of calories.  Calories only come from protein, fat, or carbs.  So listing the "calories from fat" is just telling you the fat calories.  If you add up the number of calories from protein, fat, and carbs, you should get the total number of calories- the number on the label after "calories."\n\nPcal + Fcal + Ccal = Total Calories.\n\nSo yes, that first calorie reading is what is contributing to your total calorie intake.  The rest just tell you what the calories consist of.
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go to ediets.com\nthere is a nutritional tracker on there for free. it works wonders. it calculates calorites, fat, protein, etc.  there is also alot of information you can read there too. if you want to lose weight, you should burn as much as you eat. remember that you burn calories just doing simple things. try vacuming the house!
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3,500 calories is equal to one pound. For example, if you eat 250 calories per day fewer than your maintenance rate requires and exercise enough to burn an additional 250 calories each day, you will lose approximately one pound per week.
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Go to google n type in calorie counter n there is a site that has the words caloriecounter---- < that is another word that i dont remember anyways n it will have a HUGE list of stuff or you can type it in n find out the calories in them.\nWe had to do sum like this for school n thats how i found out. Try it.
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Look at the nutrition label on the side of the box. Look under where it says 1 serving. One of the first things listed should be calories. NOw, the box will have two calorie measurments (usually) you want the one under kcal. SO if it says 100 you know how many is in the food.\nNot all foods you eat will have calories listed, such as at restraunts ect. This site has an estimate of how many calories is in all types of food! including fast food\nhttp://www.thecaloriecounter.com/\nThis site tells you how many calories you need to eat to MAINTAIN weight\nhttp://www.cancer.org/docroot/PED/content/PED_6_1x_Calorie_Calculator.asp\nYes it is true! a 3500 calorie deficiency (through a combo of excercise and eating les than to maintain weight will lose you a pound. To calculate calories buruned doing certain activities, go here!\nhttp://www.primusweb.com/fitnesspartner/jumpsite/calculat.htm\n\nAnd no, if you excercise you cannot eat what you like if you want to lose weight to the person who said you can
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This one is very comprehensive:\n\nwww.calorielab.com
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www.calorieking.com\n\nmy favorite site for this
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there are a lot of sites, if you just google "calorie"\n\nhere's one I came across\n\nhttp://www.thecaloriecounter.com/
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It's true that you have to burn more calories than you eat to lose weight.  If you eat more than you burn, the excess is stored as fat.  However, you use a fair amount just by normal daily tasks such as walking round, keeping the body warm and alive, etc.  Depending on what you do during the day, you will burn off 1500 calories or more.
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It is simply - calories in, calories out (burned). Your weight is simply a reflection that, overall. And it is cumulative. In other words, if you splurge on one day, you need to hold back some the next.
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That's good to drink water, but what you eat and how much is more important. The calories eaten must be less than the calories burned through daily activities and exercise.
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The SI unit: calorie (cal)
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1 gram of fat contains 9 calories of energy\nthe thing is you burn calories to get it in you and to store it and such so instead of 4500 calories you might think it is actually going to be less.\n\n3500 calories per pound is the standard number used which is equivalent to 3855 calories for 500 g.\n\nso it depends on if you are talking about a human eating less or working it off to lose the weight or if you are talking about the amount of extra calories you need to eat to gain a pound (3855 or 4500).\n\nweird huh?
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No, they're different.  A thousand cal make up one kcal, just like a thousand meters make up one kilometer.  \nHowever, the "calorie" that you see in nutrition facts and dietary counts is actally a Cal, which is the same thing as a kilocalorie.  It's just so much easier to work with that way, because otherwise, we would be consuming 2,000,000 real calories a day!
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go to sparkpeople.com \nit has food guidelines, plus weight loss tracker, you can even enter all the foods you eat and it will count the calories. Also some excercise tips and will give you a tailored exercise plan. All free too...good luck