Shiitake mushrooms can be eaten in early pregnancy. Shiitake mushroom is a common ingredient in life, which is tasty and nutritious and can enhance the appetite of pregnant women and replenish the missing nutrients in their bodies. Shiitake mushrooms also contain more than 30 kinds of enzymes, which have the effect of inhibiting the increase of blood cholesterol and lowering blood pressure. The interferon inducer contained in shiitake mushrooms can inhibit the reproduction of viruses. The shiitake mushroom contains a “lutropin virion” that acts as an antibody to prevent the growth and development of cancer cells and has a significant inhibitory effect on mutated abnormal cells. The adenine contained in shiitake mushrooms can lower cholesterol and prevent cardiovascular disease and cirrhosis of the liver. Regular consumption of shiitake mushrooms by pregnant women can enhance the immunity of the body. Shiitake mushroom also contains a polysaccharide, and tests have proved that although polysaccharides do not directly kill viruses, they can enhance the body’s immunity, have obvious anti-tumor activity, and regulate the body’s immunity.