nutritive value
Non-staple food can provide rich nutrients such as protein, fat, vitamins and inorganic salts, which plays an important role in human health. There are many kinds of non-staple food, including meat, eggs, milk, poultry, fish, beans and vegetables. Their nutritional functions are also different. Animal foods such as meat and beans are rich in protein and fat, but lack vitamins and inorganic salts, especially vitamin C.
The protein content of vegetables is very small, but they are rich in vitamins and inorganic salts, and some vegetables are also rich in vitamin C. If all kinds of non-staple foods are eaten together, they can learn from each other's strengths and make people get more comprehensive nutrition.
Collocation pattern
Meat and vegetables should go well together.
The collocation of meat and vegetables is an important principle of non-staple food allocation. The combination of meat and vegetable can solve the complementary problems in protein, such as the combination of bean products, gluten and animal proteins such as meat, eggs and poultry, which can greatly improve the nutritional value of protein. Protein is rich in food and vegetables, which can not only make full use of the complementary role of protein, but also obtain rich vitamins and inorganic salts.
Especially make full use of soybean protein. Soybean is rich in protein, with good quality and low price, which is a good source of high-quality protein. Bean products are very popular with all kinds of vegetables, such as fried tofu with onion, fried rape with yuba, casserole tofu, fried wild vegetables with shredded tofu and so on.
The combination of meat and vegetables can also adjust the acid-base imbalance of food. Many animal foods, such as fish, meat, eggs and milk, are acidic foods. Eating too much animal food will cause acid-base imbalance. Many plant foods, such as leafy vegetables, flower moss and eggplant, are alkaline foods, which can adjust the acid-base balance in the body. For example, mixing bean products with meat, and then mixing with leafy vegetables, flower moss and fruit eggplant vegetables can not only obtain comprehensive nutrition, but also maintain acid-base balance, which is beneficial to health.
Raw and cooked collocation
This is especially important for vegetables, because vitamins C and B in vegetables are easily destroyed when heated. Cooked vegetables always lose some vitamins, so eating some fresh lettuce can not only retain a lot of vitamins, but also stimulate appetite. Especially in summer, you can eat more cold dishes, such as cooked shredded pork mixed with cucumber and vermicelli; Radish mixed with shredded pork noodles; Onion mixed with tofu, etc. Of course, when eating lettuce, you must pay attention to hygiene. You'd better sterilize it before eating.
The above contents refer to Baidu Encyclopedia-Non-staple food.