Bracken is also known as faucet, fist cabbage, wishful cabbage, etc. The edible bracken refers to its tender stems. It is known as the bracken because it has the functions of detoxifying, clearing away heat, moisturizing the intestines, lowering qi, and resolving phlegm, and is delicious. It is the "King of Mountain Vegetables". Our country has had the habit of eating bracken since ancient times, and poems praising bracken are everywhere. "The Book of Songs": "Zhi Nanshan, I would like to pick its ferns." Qian Qi: "It's sunset over the wine stream, and my family is gathering ferns for return." Li Bai: "In the past, when I was in Nanyang City, I only ate Dushan fern." Lu You was particularly fond of bracken, as evidenced by a poem: "The shepherd's purse is old in the shade of the wall in spring, and the bamboo shoots and ferns are on the plate."

The fern in bracken has a certain inhibitory effect on bacteria, can clear away heat, detoxify, sterilize and reduce inflammation. Some active ingredients in bracken can dilate blood vessels and lower blood pressure.

Bracken can also stop diarrhea and diuresis. The dietary fiber contained in it can promote gastrointestinal motility, has the effect of lowering Qi and laxatives, and can cleanse the intestines and detoxify. Bracken is commonly used among the people to treat diarrhea, dysentery and obstructed urination. Eating regularly can replenish the spleen and qi, strengthen the body, enhance disease resistance, and help lose weight.