Is It Legit?

Supported

5/5

creatine improves muscle strength

SupplementsExerciseAgingMetabolism
5/5 evidence score10 peer-reviewed studies

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

The claim is strongly supported by a substantial body of peer-reviewed evidence, including recent systematic reviews and meta-analyses. Studies consistently show that creatine supplementation, particularly when combined with resistance training, leads to significant improvements in muscle strength across various age groups, from younger adults to older individuals. While some research indicates potential sex-based differences in the magnitude of strength gains, creatine remains a highly effective and safe ergogenic aid for enhancing muscular performance. The evidence base is robust, with numerous high-quality studies affirming its benefits.

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 paper

International 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 paper

Creatine 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

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