Compound phosphates are food additives approved for application by the state, and are generally harmless to the human body within the scope of application permitted by the state; if they are used beyond the scope of safe use, they will make the food with a certain degree of toxicity, which is harmful to human health. Compound phosphate refers to the application of food production added more than two kinds of phosphate, the improvement of food plays an important role, for example, can make the steamed bread more fluffy and texture, conducive to the preservation of seafood and inhibit the oxidation, improve the PH value of meat products, to maintain the taste and color of fruit juice drinks and so on. If excessive consumption of food with high compound phosphate content will affect the absorption of vitamin D elements in the human body, resulting in an imbalance in the ratio of calcium to phosphorus, and the calcium elements can not be adequately absorbed and utilized, which may lead to bone fracture, tooth loss, joint deformation and other conditions. Daily life of cooked food, snacks, beverages contain compound phosphates, it is recommended that usually try to choose to eat fresh fruits and vegetables, meat products, etc., and drink less beverages, which can effectively reduce the intake of compound phosphates, to avoid excessive intake of unnecessary harm to the human body.