Pteridium aquilinum is widely distributed, especially in Chinese mainland and Southeast Asia. Its young leaves are rich in nutrients, including carotene, vitamins, protein, fat, sugar, crude fiber, potassium, calcium, magnesium and 18 amino acids. Its taste is smooth, mixed with seasoning, cool and refreshing, and it is a rare excellent table product. Has the effects of clearing away heat and toxic materials, promoting diuresis, relaxing bowels and reducing weight.