A food calorimeter is a list drawn or listed according to the energy contained in a unit quantity of food (such as100g) for reference in diet and health care. Different foods produce different energy.

The role of heat?

1, calories come from carbohydrates, fat, 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.

Unit of heat?

Kilocalorie, kilojoule?

1 kcal = 4. 184 kj?

1 kcal: it is the heat that can make 1 ml of water rise by 1 degree.

Adults need calories every day?

1, daily calories required by adults =? Basic calories needed for basic metabolism of human body+calories needed for physical activity+calories needed for digesting food?

2. The calories needed to digest food = 10% x (the minimum calories needed for basic metabolism of human body+the calories needed for physical activity)?

3. The daily calorie required by adults = 1. 1 x (the minimum basic calorie required by basic metabolism of human body+the calorie required by physical activity)?

How many calories do adults need every day?

Male: 9250- 10090 kilojoules?

Female: 7980-8820 kilojoules?

Note: the daily calories provided by food should be no less than 5,000-7,500 kilojoules, which is the minimum energy to maintain normal life activities of human body?

Extended data:

1, the main component of rice is carbohydrates, and the composition of amino acids in rice is relatively complete, which is easy for human body to digest and absorb. People eat more and more refined rice, less and less nutrition, and eat all 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, so it 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. The weight of a plate of raw peanuts 100g, the heat content is 563 kcal, 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 12.9kcal of calories, and the contents of protein, fat and cellulose are 28.6, 32 and 0g respectively.

References:

Food Calorimeter-Baidu Encyclopedia