Flammulina velutipes: It contains protein, fat, crude fiber, vitamin B 1, B2 and other vitamin B groups, as well as eight kinds of amino acids needed by the human body and other beneficial components. It also contains high zinc content, which has the function of promoting brain health. When purchasing Flammulina velutipes, you should choose pure white, light yellow or yellowish brown, fresh and shiny, with a certain amount of moisture, and no spots, defects and shrinkage on the lid and stem. Volvariella volvacea: The meat is crisp and tender and delicious. Volvariella volvacea has high vitamin C content, which can promote human metabolism and improve immunity. Moreover, it can slow down the body's attraction to carbohydrates and is suitable for pregnant diabetic mothers. Pleurotus ostreatus: Also known as Pleurotus ostreatus, it contains protein, sugar, fat, vitamins, iron, calcium and other trace elements, and is rich in amino acids. Long-term consumption can reduce hypertension and cholesterol.