The shiitake mushroom, also known as the winter mushroom, is a kind of fungus that grows on wood and has a history of more than 4,000 years in China. It has a delicious flavor, rich in nutrients, and is known as the "Queen of Plants". The Japanese people think that the mushroom and the silver fungus is the same as the medicine for longevity.

Shiitake mushrooms not only have a unique flavor and aroma, but also contain a wealth of beneficial components. According to the analysis, each hundred grams of fresh shiitake mushroom contains 12-14 grams of protein, 60 grams of carbohydrates, 124 milligrams of calcium, 25 milligrams of iron, 415 milligrams of phosphorus, and vitamins B1, B2, C and polysaccharides and so on. Dried shiitake mushrooms by water immersion liquid contains a variety of amino acids, acetamide, choline, choline and other components. In addition, shiitake mushrooms are also rich in dietary fiber, often eaten to reduce blood cholesterol, prevent atherosclerosis, to prevent and control cerebral hemorrhage, heart disease, obesity and diabetes are good. In recent years, American scientists have found that shiitake mushrooms contain a kind of B-glucosidase, which has the obvious effect of strengthening the body's anti-cancer function, therefore, some people call shiitake mushrooms as "new anti-cancer soldiers". Shiitake mushrooms can also fight colds and viruses, because they contain an interferon inducer, which can induce the production of interferon in the body, interfering with the synthesis of viral proteins, so that they can not reproduce, thus enabling the body to produce immune effects.