1. Eat more high-calorie and cold-proof foods: the dietary principles in cold winter: First, there should be rich and sufficient nutrition and sufficient calories; Second, food should be warm, which helps to protect yin qi in the body. Under the guidance of this theory, Chinese medicine has summarized some cold-proof foods, such as mutton, beef, ham, chicken and dog meat. Pepper, pepper, garlic, ginger, mushrooms, leeks and leeks in vegetables; Walnut, longan, chestnut, jujube, preserved apricot, litchi, orange, grapefruit, pine nuts, etc. Fruit not only supplements enough nutrition, but also protects human yang, making people feel warm after eating.

2. Eat more nourishing food: Although it is refreshing in winter, it is too dry. When the humidity of the weather is only 22%, it is inevitable that your lips and tongue will be dry. Dry winter is particularly prone to cough, which is almost always a dry cough, and the treatment method is mainly moistening dryness. In short, everyone should "moisten" when it is dry in winter, such as eating boiled old sugar water, carrot horseshoe water, and stewed apples with Fritillaria.

3. Pay attention to food supplement: In order to enhance physical fitness, many people are often used to taking some supplements in winter. Ginseng, velvet antler, donkey-hide gelatin, astragalus, etc., are of course beneficial to people, but if taken improperly, they will often bring some side effects. Proper food supplement is economical and has no side effects. Therefore, in winter, we must first follow the principle that "medicine is better than food".

If the elderly usually have no obvious chronic diseases and normal digestive function, then they should eat some complementary foods with strong nourishing effect and easy digestion in winter according to their hobbies, economic conditions and environment. Such as soybean food, walnut, corn porridge, green leafy vegetables, sweet potato (sweet potato), yam and so on. It is the main ingredient, and some animal foods such as mutton, shrimp, duck and turtle are added. In addition, honey, tremella, longan pulp and fungi (such as mushrooms) can also be eaten in moderation according to personal hobbies and physical reactions.