1, watercress originated in Europe, now China's provinces and cities are cultivated. It contains more protein, vitamin A, vitamin C and a small amount of vitamin D, a large amount of iron, calcium and other elements. In guangdong and guangxi part of the area is often cultivated for vegetables, the whole grass can also be used medicinally, have antipyretic, diuretic effect.

2, clearing dryness and moistening the lungs, Xiyangcai taste sweet and bitter, cold, into the lungs, bladder, with dryness and moistening the lungs, phlegm, cough, diuretic effect, it is the treatment of consumption of the ideal food. The watercress into the lung meridian, there is a "natural dry rescue lung soup" reputation. Autumn often eat some watercress, the respiratory system is very beneficial.

3, blood circulation and menstruation, Xiyangcai has the role of menstruation, women in the menstrual period before the consumption of some of the symptoms of dysmenorrhea, menstruation and other symptoms to play a role in preventing and controlling.

4, to prevent sports injuries, watercress can also be effective in preventing the accumulation of "free radicals", exercise 2 hours before eating watercress can effectively prevent the injury brought about by strenuous exercise.

5, contraception, watercress can interfere with the egg to prevent pregnancy, can be used as contraception, menstruation and abortion auxiliary food use.