Which sports supplements actually boost performance—and which don't?

Sports supplements remain a popular choice for athletes looking to improve performance and recovery. Some products deliver proven benefits, while others fall short of their marketing claims. Recent research highlights which options actually work and which may not live up to expectations. Creatine stands out as one of the most effective supplements for strength and power. It boosts energy reserves in muscles, allowing athletes to train harder and recover faster between sets. Studies confirm its role in maintaining high-intensity performance during workouts.

Protein powders, especially whey-based varieties, have become a dietary staple for many athletes. They provide all essential amino acids needed for muscle repair and growth after exercise. Blended protein formulas, combining fast- and slow-digesting proteins, also help maintain a positive nitrogen balance during intense training periods.

Fish oil offers another well-supported benefit. Rich in omega-3 fatty acids, it reduces inflammation, supports heart function, and contributes to overall well-being. These effects make it a valuable addition to an athlete’s diet.

However, not all supplements deliver on their promises. Chromium picolinate, often marketed as a metabolism booster and fat burner, has shown no significant impact on body composition or athletic performance in multiple studies. Similarly, arginine—a supplement promoted for muscle growth—has failed to produce meaningful results in clinical trials. DHEA, another product claiming to raise testosterone levels, has also proven ineffective in human research. Athletes seeking reliable performance enhancers can turn to creatine, protein powders, and fish oil for measurable benefits. Meanwhile, supplements like chromium picolinate, arginine, and DHEA lack strong scientific backing. The difference lies in proven results versus marketing claims.