Soy products contain fat, protein and other nutrients, moderate consumption generally does not cause fat. Soy products are generally processed foods made from soybeans, black beans and other legumes as the main raw material. Soy products are foods such as tofu and soy milk. Such as every 100 grams of tofu contains 3.7g of fat; every 100 grams of soymilk contains about 0.7g of fat, so eating soy products in moderation generally does not lead to obesity. However, long-term large quantities of food there is a certain risk of obesity, because when the human body eats more calories than the consumption of calories, excess calories stored in the form of fat, so that the body fat content exceeds the normal physiological needs and cause obesity. It is recommended that daily dietary attention to food overdose, balanced nutrition, food diversity, appropriate exercise.