Losing weight, maintain weight, sate off the effects of condition are the reasons for most to embarking a new and lasting health and fitness lifestyle. Exercise changes body composition, stamina and strength. But changing food related thoughts and behaviors can be the key to lasting weight loss. Every time you diet to lose weight, you lose lean tissue; therefore, you must decrease caloric intake to avoid subsequent weight gain.

Wednesday, September 14, 2016

What is the definition of calorie?

Early in the development of thermodynamics, before scientists realized the connection between thermodynamics and mechanics, heat was defined in terms of the temperature changes it produced in an object, and a separate unit of energy, the calorie was used for heat.

Coined after the French word ‘calorique’ or heat substance, the ‘calorie’ (cal) is defined as the energy necessary to raise the temperature of 1 kg of water from 14.5 °C to 15.5 °C. The Calorie with a capital C, used in describing the energy content of foods, is actually a kilocalorie.

Low calorie is defined as no more than 40 calories per serving and no more than 40 calories per 100 g of food. The proposed definition of calorie-free is less than five calorie for each serving.

Although the kilocalorie is till widely used in the United States, the joule is actually the designated SI unit of energy. Conversion between calories and joules can easily be accomplished using the following equation:
1 calorie = 4.184 joules
What is the definition of calorie?

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