You can drink soy milk during menstruation, make sure not to drink too much, it is recommended that one cup is appropriate. Soy milk is rich in nutrients and is usually very beneficial for women to drink. Soy milk, also known as plant milk, is rich in vegetable protein and phospholipids, and also contains vitamin B1, B2 and niacin. Soybean milk also contains iron, calcium and other minerals, especially high calcium content, has the effect of strengthening the spleen and stomach, suitable for malnutrition, vascular sclerosis, coronary heart disease, osteoporosis and other diseases. However, the food can not be used more than one, soy milk drink more than one easy to flatulence, diarrhea, indigestion, etc.. According to their specific situation, moderate amount of soy milk is very beneficial, if there is discomfort, need to promptly reduce the amount or stop drinking soy milk.