Monday, July 2, 2012

How Food Calories Measured.

Calories are a measure of heat. The base unit, one calorie, is the amount of heat needed to raise the temperature of one gram of liquid water by 1° Celsius. Food calories, in particular, are the potential energy (heat) that food generates when eaten. A food calorie is defined differently from the standard calorie used in chemistry and physics. One food calorie is the amount of heat needed to raise the temperature of one kilogram (or 1 liter or 2.2 pounds) of liquid water by 1° Celsius. Therefore, a food calorie is 1,000 times as great as a standard calorie.
Over consumption of food calories is a common problem among people, Americans in particular. If a person consumes more calories than his or her body can use, the excess calories are stored as fat.
The nature of food calories is also an important consideration in diet. More calories should be consumed in the form of complex carbohydrates (starches) than simple carbohydrates (sugars). That because simple carbohydrates are generally "empty" calories, meaning they have little nutritional value. Complex carbohydrates, on the other hand, contain nutrients necessary to sustain the body.
Calorie requirements may change as a result of being extremely active, being ill, or a woman being pregnant.


We have to keep working on our fitness. Here is a Guy that uses a different way to measure. Larry Smarr once spent two weeks measuring everything he put in his mouth. He charted each serving of food in grams or teaspoons, and broke it down into these categories: protein, carbohydrates, fat, sodium, sugar, and fiber. 
Please go to this web site and read more about more measure. 
http://m.theatlantic.com/magazine/archive/2012/07/the-measured-man/9018/ 
 I will work to keep giving you information on nutrition and fitness week by week. Live strong and healthy.




 

 

 

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