Fungi, a major category in heterotrophs, do not contain chlorophyll and cannot carry out photosynthesis. Without the differentiation of roots, stems and leaves, and without photosynthetic pigments such as chlorophyll (except for a few photosynthetic bacteria), it is impossible to carry out photosynthesis, saprophytic life or parasitic life, that is, heterotrophic life. The reproductive organs are mostly single-celled structures, and fertilized eggs do not develop into embryos.

High nutritional value. Edible fungi are characterized by high protein, no cholesterol, no starch, low fat, low sugar, high dietary fiber, amino acids, vitamins and minerals. Edible fungi concentrate all the excellent characteristics of food, and its nutritional value has reached the peak of plant food, so it is called longevity food.

The protein content of fungi greatly exceeds that of other common vegetables, and at the same time, it avoids the harm of high fat and cholesterol in animal food. According to the determination, protein contained in fungi accounts for about 30%-45% of the dry weight, which is 3-6 times that of ordinary vegetables such as Chinese cabbage, white radish and tomato. The total amount of wild mushrooms in protein is not only high, but also the kinds of amino acids that make up protein are very complete, about 17, 8. In particular, eight essential amino acids can be found in wild mushrooms. Rich protein provides delicious taste, which is also the secret of delicious taste of wild mushrooms.