First, there are various categories. The daily diet of the elderly should include five categories of food, namely cereals and potatoes, animal food, beans and nuts, vegetables and fruits, fungi and algae, edible oil and condiments.
Second, the variety is diverse. That is to say, the variety is a bit mixed. It is suggested that the elderly should try to choose one kind of food from each of the above five categories and try to make dishes or meals containing multiple foods. For example, people in China like eight-treasure porridge, vegetarian food, jiaozi, spring rolls, sliced pork with green pepper and fungus, egg cakes, celery dried beans, cold radish, green bamboo shoots and kelp. You can also add cereal, bread, steamed bread and dried rice to milk or soybean milk. These dishes or meals composed of various foods can take in a variety of nutrients and give full play to the complementary role of nutrients.
Third, the combination of meat and vegetables. Food with meat and vegetables is delicious and nutritious. Amino acid complementation can improve the nutritional value of protein. Vegetarian food such as bean products and gluten can be eaten with meat, poultry and shrimp, and made into dishes such as tofu powder, shrimp tofu or fried noodles with shredded chicken. Adding vegetables to meat can not only increase the delicacy of food, but also increase the synergistic effect of nutrition, such as frying meat with green peppers. Vitamin C in green peppers can promote the absorption of iron in meat.