eat more foods to improve resistance, but the elderly generally have high blood pressure, so it is not recommended to eat too much ginseng here. Although the effect is very good, it is easy to cause high blood pressure and serious stroke.

so it is recommended to eat something light. American nutritionists reported in Qiao Bao that orange juice, carrots, garlic and other nutrients can stimulate the immune system and enhance human immunity. Without these important nutrients, the body's immune function will be seriously affected.

Vitamin C, vitamin B6, carotene and vitamin E in nutrients are closely related to immunity. For example, vitamin C can stimulate the body to produce interferon to destroy the virus so as to reduce the combination of white blood cells with the virus and maintain the number of white blood cells. Therefore, vitamin C must be supplemented in large quantities during a cold to enhance immunity; Green pepper and orange juice are rich in vitamin C; Foods rich in vitamin B6 include chicken, fish, liver, potatoes, avocados and sunflower seeds. Carrots contain a lot of carotene; Foods rich in vitamin E include almonds, hazelnuts and various whole wheat foods. In addition, there are folic acid, vitamin B12, nicotine, pantothenic acid, iron, zinc and other minerals in nutrients, which are all related to immunity. The lack of these nutrients will affect the immune function.

Nutrition experts also suggested that people should eat more foods to improve immunity, such as mushrooms and garlic. Try to eat less foods that stifle immunity, such as high-fat foods, sugar, alcohol and tobacco, coffee and drugs. Also pay attention to moderate intake of sugar. Many studies have shown that polysaccharides play an important role in anti-inflammatory, anti-virus, regulating blood sugar and blood lipid and enhancing immunity.