Because of age, the metabolism of the elderly is slow, catabolism increases, and anabolism decreases, so muscle attenuation is prone to occur. Therefore, the nutrition should be balanced, and the calorie ratio of protein foods should be appropriately increased. At least above 15%, especially high-quality protein accounts for more than 50% of the total intake in protein, such as chicken, fish and shrimp, eggs, lean meat and beans.

The proportion of coarse grains should be increased in the daily staple food to prevent constipation. Emphasis should be placed on supplementing foods with high calcium content, such as milk and beans, and at the same time, appropriate outdoor exercise and exposure should be carried out to prevent osteoporosis.

The diet principle is light, low in sugar, low in salt and low in fat, and fried foods and sweet drinks are avoided. Eat regularly every day, develop the habit of eating regularly and quantitatively, and be full at seven or eight points per meal.