Influenza always attacks the people with weak physical constitutions. Do you know that many foods can help you prevent influenza? These foods include yogurt, beef, mushroom, seafood, tea, garlic, oat and sweet potatoes. 

Yogurt contains abundant probiotic bacteria. The probiotic bacteria can effectively protect the intestinal tract and restrain the reproduction of pathogenic bacteria. At the same time, the lactobacillus contained in yogurt can accelerate the normal growth of white cells in the blood.

Beef contains a high content of zinc. Zinc can effectively strengthen the immunity and promote the growth of white blood cells. Beef is a good source of zinc. Therefore, you can moderately eat beef to protect the immune system and prevent influenza.

Mushroom is a good food for you to improve the immunity. This is because mushroom plays an important role in strengthening the activity of white blood cells in your body. People with weak physical constitutions can frequently eat mushroom in their daily life.

Seafood can provide adequate selenium for the human body. Selenium can effectively increase the content of immune protein and remove the viruses from the body. In addition, the omega-3 fatty acid contained in seafood can promote the production of anti-influenza cells in the blood.

Tea has been regarded as a kind of good food to kill bacteria and prevent influenza. Five cups of tea a day can accelerate the production of antiviral interferon and improve the human immunity to influenza. At the same time, drinking tea can help you alleviate food poisoning, malaria, pulmonary tuberculosis and beriberi.

Garlic contains a high content of allicin. Allicin can effectively help you fight against infection and bacteria. If you often eat garlic, the risks of getting colon cancer and gastric cancer can even be reduced.

Oat is a good source of beta-glucan. This kind of cellulose can fight against bacteria and oxidation. Eating oat can also help you strengthen the immunity, accelerate the recovery of wounds and improve the functions of antibiotics.

Sweet potatoes are rich in beta-carotene. Beta-carotene can be transformed into vitamin A in the human body. It is known to all that vitamin A plays an important role in protecting the skin tissues. Skin is the most important protective screen for you to fight against bacteria and viruses. Therefore, it is necessary for you to improve the functions of skin. Sweet potatoes are just the best tools for you to protect your skin.