Each has its own strengths and weaknesses.

The white-backed black fungus is also called hairy fungus (different from the northeastern black fungus). The front is black and the back is gray-white, with a layer of fine villi. It is useful for the treatment and prevention of cardiovascular and cerebrovascular obstruction diseases in middle-aged and elderly people. It has unique effects in lowering blood lipids and blood pressure, and it also has a good preventive and treatment effect on constipation in the elderly.

Agaric (English: agaric) mainly grows in China and Japan. In China, most of them are Northeastern fungus and Qinling fungus. Fungus can be wild or artificially cultivated. The seed body is ear-shaped, leaf-shaped or cup-shaped, thin, with wavy edges, 3-10 cm wide and about 2 mm thick, with a short lateral stalk or a narrow attachment part. Fixed to the substrate. The color is dark brown, the texture is soft and gelatinous, thin and elastic, translucent when wet, and shrinks into brittle and hard keratin similar to leather when dry. It tastes delicious, can be vegetarian or meaty, and is rich in nutrients. Fungus is sweet in taste and neutral in nature, and has many medicinal effects. It can replenish qi and strengthen the body, has the effect of activating blood circulation, and can prevent and treat iron deficiency anemia, etc. It can nourish blood and keep the skin rosy and radiant, can clear the stomach and lubricate the intestines, and is also helpful for patients with high blood pressure.