Soybean is a food, rich in large amounts of protein and rich in vitamins and trace elements, but there is no efficacy and effect of drugs, in addition to soy allergy should not be eaten, there is generally no other contraindications. Soybean, is a legume genus of annual herbaceous plant seeds, contains a large amount of protein, and mainly are high-quality protein-based, but also rich in lipids, B vitamins, potassium, phosphorus, calcium and other nutrients needed by the human body. 100 grams of soybeans contain 446 calories, of which 30.16 grams of carbohydrates, 36.09 grams of protein, 19.94 grams of fat, 277 milligrams of calcium, 15.7 milligrams of iron. Moderate consumption of soybeans, play a role in supplementing human nutrition. But soy should not be eaten raw, because some ingredients in soy such as plant lectins, trypsin inhibitors, etc. will cause diarrhea, nausea, vomiting, etc., not only that, but also can not eat too much soy, not easy to digest at the same time, it will also lead to bloating. If there is an allergy to the ingredients in soy, it is not recommended to consume soy.