This study aimed to investigate the use of supplements among, including the types and brands of supplements and the ways and reasons for taking them. The sample is divided into three categories: elite, youth, and junior. The research method is a survey using a Google form which is distributed to all Athletes. The results showed that 200 Athletes used supplements, including 125 elite Athletes, youth amateur boxers, and 20 junior Athletes. A total of 130 Athletes received supplements from coaches, used only one type of supplement. The most widely used types of supplements are multivitamins and minerals. A total of 102 Athletes used supplements within 4-5 months before the competition. Athletes can feel good effects after using supplements. However, counseling about sports nutrition by doctors, nutritionists, Pharmacists and nurses needs to be done so that Athletes can choose the right supplements and be more careful in using these supplements. These findings can be a reference for coaches and athletes to determine the right supplements to regulate nutrition Better.