A food calorimeter is a list drawn or listed according to the energy contained in a unit amount of food (for example, 100g) for reference in diet and health care. Different foods produce different energy.

The role of heat?

1, calories come from carbohydrates, fats, protein?

2. Carbohydrate generates heat energy = 4 kcal/g?

3. Heat generated in protein = 4 kcal/g?

4. Heat generated by fat = 9 kcal/g..

Thermal unit?

Kilocalories, kilojoules?

1 kcal = 4. 184 kj?

1 kcal: It is the heat that can make 1 ml of water rise 1 degree Celsius.

Adults need calories every day?

1, daily calorie requirement of adults =? Basic calories for basic metabolism+calories for physical activity+calories for digesting food?

2. The calories required for digesting food = 10% x (minimum calories required for basic metabolism of human body+calories required for physical activity)?

3. Adult's daily calorie requirement = 1. 1 x (minimum basic calorie required for basic metabolism of human body+calorie required for physical activity)?

How many calories do adults need every day?

Male: 9250- 10090 kJ?

Female: 7980-8820 kJ?

Note: The daily calories provided by food should not be less than 5,000-7,500 kilojoules, which is the minimum energy to maintain normal life activities?

Extended data:

1, the main component of rice is carbohydrate, and the amino acid composition in rice is relatively complete, which is easy to be digested and absorbed by human body. People eat more and more polished rice, less and less nutrition, and all they eat is calories. 1 bowl100g (2 Liang) rice calories 1 16 calories. The contents of minerals, dietary fiber and B vitamins (especially vitamin B 1) in brown rice are higher than those in polished rice, but the calories are lower, which is more suitable for weight loss.

2. The weight of an apple is 200g, the calorie is 79Kcal, and the contents of protein, fat and cellulose are 0.3, 0.3 and 1.82g respectively.

3. A plate of raw peanuts weighs 100g, contains 563 calories, and the contents of protein, fat and cellulose are 24.8, 0.4 and 5.5g respectively.

4. A plate of pork chops is 230g, containing 4 12.9 calories, and the contents of protein, fat and cellulose are 28.6, 32 and 0g respectively.

References:

Food calorimeter-Baidu Encyclopedia