No. According to the inquiry, the eye examination shows. Grapefruit juice is not an IQ tax. In addition to the unique taste, grapefruit juice also creates a variety of effects. The essential ingredients extracted from grapefruit and citrus can supplement the vitamin nutrition needed by human body. The grapefruit juice production base has passed the international GMP certification, HACCP system certification and high-tech enterprise certification. It has 6,543,800+class clean workshop and world-class equipment, introduced the R&D room of the National Enterprise Technology Center, controlled the hygiene and safety of food production with strict drug production standards, made the details to the extreme, and ensured the quality and safety of products.