Nutritional supplements, also known as nutritional supplements, nutritional supplements, dietary supplements, etc., are used as an auxiliary means of diet to supplement amino acids, trace elements, vitamins, minerals, etc. required by the human body. Nutritional supplements can be composed of amino acids, polyunsaturated fatty acids, minerals and vitamins, or only one or more vitamins, or one or more dietary ingredients, in addition to amino acids, vitamins, minerals. In addition to nutrients such as substances, there may also be herbs or other plant ingredients, or concentrates, extracts or compositions of the above ingredients.
