Diet control method: First, according to age, sex and daily activity, determine the total calories needed every day. Then, on the basis of total calories, determine the proportion of nutrients and the distribution of calories in the restaurant.

Daily total calories required: at normal rest, adults are given 65,438+0045 ~ 65,438+0254 joules per kilogram of body weight, and those with high activity are given 65,438+0463 ~ 65,438+0672 joules per kilogram of body weight, which can be increased or decreased according to body size.