Hello, healthy people, the daily carbohydrate intake should not be less than 150g (3 Liang). Experts believe that a scientific diet should be balanced in structure and nutrition, with a reasonable proportion of protein, fat and carbohydrate. The energy provided by carbohydrates should account for about 60% of the daily energy consumption, with fat accounting for about 25% and protein accounting for about 15%. Carbohydrate accounts for the largest proportion. People should supplement cereal every meal, 30% in the morning, 30% in the evening, a little more at noon, about 40%. It is generally believed that healthy adults need 0.8 g protein per kilogram of body weight every day. In China, it is recommended as 1.0g, because the source of protein in Chinese people's diet is mostly plant protein. Its nutritional value is slightly lower than that of animal protein. The demand for protein is also related to labor intensity. The higher the labor intensity, the greater the demand for protein. According to the supply standard recommended by China Nutrition Society, male 18-45 years old (weighing 63kg) is engaged in extremely light manual labor, and the daily protein supply is 70g. If you are engaged in extremely heavy manual labor, it will rise to 1 10g. For people under special physiological conditions, the supply of protein will also change. For example, pregnant women who are pregnant for 4-6 months will increase their daily intake of protein by 15g. Pregnant women and lactating women who are pregnant for 7-9 months should add 25 grams on the basis of the original amount. For patients, on the basis of normal maintenance, we should consider their disease characteristics, disease resistance and tissue repair needs.