What should the elderly eat to prevent colds?

　　Shiitake mushrooms are a food that many people love to eat. In recent years, scientists have discovered that shiitake mushrooms have anti-tumor and anti-viral effects. Japanese doctors have discovered that eating shiitake mushrooms regularly can promote metabolism, make people energetic and less likely to cause cold。

　　Eating shiitake mushrooms can help prevent colds because they have the dual effects of antiviral and enhancing the body's resistance. According to measurements, shiitake mushrooms are rich in protein, vitamins, linoleic acid and other nutrients, as well as a large amount of calcium, iron, copper and other minerals. They also contain a variety of amino acids necessary for the human body. Therefore, eating mushrooms regularly can not only increase nutrition, but also enhance the body's disease resistance.

　　Research has also found that mushroom ribonucleic acid contained in shiitake mushrooms can stimulate the body to produce and release interferon, and interferon can eliminate viruses in the human body and enhance the body's resistance to influenza viruses.

　　In addition, the purine contained in shiitake mushrooms also has strong antiviral properties.