Whats a calorie

Answer 1

A calorie ('c') is a unit of measurement of the energy contained in food. One Calorie ('C', not to be confused with '°C' as in 'degrees Celsius') is equal to 1kcal, or 1,000 calories (or 4,184 joules). One calorie (1c, or 0.001kcal) ) is the amount of energy it takes to heat 1g of water by one degree Celsius (or by one degree Kelvin,°K); more specifically, from 14.5 °C to 15.5 °C (or 287.65 °K to 288.65 °K) as the thermal capacity of water is dependent upon temperature.

Daily minimum energy requirements vary from person to person depending upon their sex, build, age, and level of physical activity. On average, the recommended daily intake for men is 2,500-3,300kcal per day, and for women, 1,500-2,500 per day.

Most of that energy is required just to function (ie- heart beat, maintaining body temperature, etc.); this is referred to as your Basal Metabolic Rate. Failing to consume the required energy to cover your BMR plus any physical activity you participate in, will result in the increased consumption of energy stores in the body, leading to weight loss. Consuming more calories than you require will lead to weight gain as the body stores energy for later use in the form of fat.

Continually failing to supply energy requirements will eventually lead to starvation. Once the body runs out of energy stores, it moves on to the muscles, bones, and ultimately, the internal organs, fighting to supply the required energy to keep you alive. Extreme or continual starvation will lead eventually to death.

Answer 2

1. Either of two units of heat energy.
2. The energy needed to raise the temperature of 1 gram of water through 1 °C (now usually defined as 4.1868 joules).

Answer 3

Calorie: noun:

1. a unit of food energy; a unit of energy-producing potential in food, equal to one large calorie. This energy, if not used, is converted to fat and stored.

2. a unit of energy equal to 4.1855 joules, originally defined as the quantity of heat required to raise the temperature of 1 g of pure water by 1º C. It has now been superseded by the joule in scientific usage.

3. a unit of energy equal to the heat required to raise the temperature of 1 kg of pure water by 1º C.

Calorie also is a ingredient that can be in foods .It is also good for your body

It's a unit of energy. A food calorie (what you see on a nutrition label) is 4187 joules.

Answer 4

Although the term calories is often used as a unit to measure the amount of food or fat, the actual definition is quite different. A calorie is the amount of heat energy needed to raise 1cm3 of water 1°Celsius.

Answer 5

A small c calorie is the amount of heat required to raise the temperature of 1 g of water 1oC. A large C calorie (a kilocalorie or food calorie) is the amount of energy required to raise 1 kilogram of water 1oC.

Answer 6

One calorie is the energy needed to rise the temperature of 1 mL of water with

1 0C. Frequently exist a confusion between cal and kcal.

Answer 7

The amount of heat required to raise the temperature of water by 1 degree Celsius about 4.19 joules

Answer 8

Calories are a measure of heat energy. Eating foods that contain calories allows your body to expend energy and to maintain body temperature. Excess calories are stored as fat.