Is It Legit?
Supported
“creatine improves muscle strength”
What the science says
Creatine supplementation, especially when combined with resistance training, consistently and significantly enhances muscle strength across various adult populations. Multiple systematic reviews and meta-analyses confirm its efficacy in improving both upper and lower body strength and overall exercise performance. While some studies note potential sex-specific differences in the magnitude of benefit, the overall evidence for strength improvement is robust.
Full analysis
Key studies
Effects of Creatine Supplementation and Resistance Training on Muscle Strength Gains in Adults <50 Years of Age: A Systematic Review and Meta-Analysis.
Wang Z, Qiu B, Li R, et al. · Nutrients · 2024
Creatine supplementation combined with resistance training significantly increased upper-body and lower-body muscle strength in adults aged < 50, with greater benefits likely in males than females.
View paperInternational Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine.
Kreider RB, Kalman DS, Antonio J, et al. · Journal of the International Society of Sports Nutrition · 2017
Creatine supplementation consistently improves high-intensity exercise performance, leading to greater training adaptations and enhanced muscle strength.
View paperCreatine for Exercise and Sports Performance, with Recovery Considerations for Healthy Populations.
Wax B, Kerksick CM, Jagim AR, et al. · Nutrients · 2021
Creatine supplementation consistently demonstrates positive ergogenic effects, including increases in maximal strength, maximal work output, and power production in healthy populations.
View paper