Rational use of sports nutrition can have a beneficial effect on the formation of various physical qualities in an athlete. A very promising option for sports nutrition is the BCAA + PEPTIDECOMPLEXIPH-AGAA nutrition complex, which is of interest to many researchers regarding its effect on the body and especially on the quality of strength in athletes who devote themselves to team sports. In the study, 82 male athletes, including teenagers and young adults, who were regularly training basketball, football and volleyball players, received the BCAA + PEPTIDECOMPLEXIPH-AGAA nutrition complex (manufacturer Ideal Pharma Peptide, Germany) in the morning and evening for the last two months. An assessment of the level of strength development in competitive athletes who received a sports nutrition complex made it possible to identify its highest level in teenage and youth basketball players. For football and volleyball players, the achieved level of strength capabilities was somewhat lower. The results obtained allow us to recommend the BCAA + PEPTIDECOMPLEXIPH-AGAA nutrition complex to team sports athletes for the development of their muscular system.