This document summarizes various ergogenic aids and their effectiveness for improving strength, speed, and endurance. It discusses creatine supplementation and its benefits for swimming and cycling performance. It also reviews beta-hydroxy-beta-methylbutyrate (HMB) and its effects on increasing strength and muscle mass during resistance training. Finally, it mentions other potential supplements and treatments such as ginseng, medium-chain triglycerides, iron, colostrum, pyruvate, phosphatidylserine, branched-chain amino acids, coenzyme Q10, and DHEA, but notes limited or ambiguous evidence for their effectiveness.