no. Yizhongyan is a brand owned by Zhengzhou Qigang Trading Co., Ltd., which mainly deals in drinks and was registered on February 7, 222. Casein phosphopeptide has many functions, which can help to supplement trace elements such as calcium, iron and zinc. It is very good for promoting calcium absorption, intestinal gland teeth and strengthening bones. The ingredients of the product are safe, and there are no additives, so you don't have to worry about harm to your body. It is not an IQ tax.