Fern is a kind of vegetable, as a food it does not have the efficacy of treating diseases, but fern contains more nutrients, reasonable consumption is beneficial to increase the body’s nutrition. Fern is the fern family fern plants hairy axis fern rhizome, edible, modern nutritional research shows that the fern in the nutrient content of the richer. Every 100 grams of fern contains 1.6 grams of protein, 0.4 grams of fat, 1.8 grams of dietary fiber, 9 grams of carbohydrates, vitamin C 23 milligrams, but also contains calcium, phosphorus, magnesium, iron, zinc, manganese, potassium and other minerals. Therefore fern as a vegetable, reasonable consumption of fern is helpful in increasing some of the above mentioned nutrients required by the organism.