1, watercress originated in Europe and is now cultivated in all provinces and cities in China. It contains more protein, vitamin A, vitamin C and a small amount of vitamin D, as well as a lot of elements such as iron and calcium. In some areas of Guangdong and Guangxi, it is often cultivated as a vegetable, and the whole grass can also be used as medicine, which has antipyretic and diuretic effects.

2, clearing away dryness and moistening lung, watercress is sweet, bitter, cold, enters the lung and bladder meridian, has the effects of clearing away dryness and moistening lung, resolving phlegm, relieving cough and diuresis, and is an ideal food for treating tuberculosis. Watercress enters the lung meridian and has the reputation of "natural decoction for clearing dryness and saving lung". Eating watercress in autumn is very beneficial to the respiratory system.

3, promoting blood circulation and menstruation, watercress has the effect of menstruation, women can eat some before menstruation, which can prevent dysmenorrhea, less menstrual flow and other symptoms.

4. To prevent sports injuries, watercress can also effectively prevent the accumulation of "free radicals". Eating watercress 2 hours before exercise can effectively prevent the injury caused by strenuous exercise.

5, contraception, watercress can interfere with egg implantation and prevent pregnancy, and can be used as an auxiliary food for contraception, amenorrhea and abortion.