Daily calorie requirement of adults = basic calorie required for basic metabolism of human body+calorie required for physical activity+calorie required for digestion of food.

Heat required for digesting food = 10% x (minimum heat required for basic metabolism of human body+heat required for physical activity)

Daily caloric requirement of adults = 1. 1 x (minimum basal caloric requirement for basic metabolism of human body+caloric requirement for physical activity). Note that the daily calories provided by food should not be less than 5,000-7,500 kilojoules, which is the least energy to maintain normal human life activities.

Extended data:

Matters needing attention in protein absorption:

1, coarse grains should be matched with flour and rice: a reasonable combination of coarse and fine grains can improve the flavor of food, help supplement various nutritional components, and also improve the nutritional value and utilization rate of food.

2. The types of non-staple food should be varied, and the combination of meat and vegetables: meat, fish, milk, eggs and other foods are rich in high-quality protein, and all kinds of fresh vegetables and fruits are rich in vitamins and inorganic salts. The combination of the two can be made into various delicious dishes, which are not only rich in nutrition, but also can enhance appetite and facilitate digestion and absorption.

3. Matching of staple food and non-staple food: the staple food is a food crop mainly containing carbohydrates, and the staple food can provide main heat energy and protein, while the non-staple food can supplement high-quality protein, inorganic salts and vitamins.

4, lean diet: the staple food should be lean according to the specific situation, which can increase satiety and help digestion and absorption.

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