In daily life, we should pay attention to the choice of food, for patients with reduced venous oxygen saturation (svo2), the choice of diet is not to be ignored, consuming the right food can play a role in alleviating the disease, on the contrary, it will aggravate the disease. Avoid eating fried, greasy food. Such as doughnuts, cream, butter, chocolate, etc., these foods help moisture increase the role of heat, will increase the amount of leucorrhea secretion, is not conducive to the treatment of the disease. It contains trace elements such as phosphorus and iron, as well as many vitamins such as A, B and D. Black fungus contains protein, fat, polysaccharides and calcium, phosphorus, iron and other elements. Eat iron-rich foods, including liver, kidney, heart, stomach and intestines and kelp, nori, soybeans, spinach, celery, rape, tomatoes, apricots, dates, oranges, etc. Folk also often use cinnamon meat, dates, peanuts as blood food. In order to promote the absorption of iron, you can also eat some acidic foods, such as tomatoes, sour dates, sour cucumbers, sauerkraut, etc. Vitamin C can help the absorption of iron, but also to help produce hemoglobin, so the amount of vitamin C intake should also be sufficient.