The Effects of Vitamin D on Skeletal Muscle Strength, Muscle Mass, and Muscle Power: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Beaudart C, Buckinx F, Rabenda V, Gillain S, Cavalier E, Bruyere O
Published in The Journal of Clinical Endocrinology and Metabolism
Methodology
Systematic review and meta-analysis of RCTs assessing vitamin D supplementation effects on muscle strength, mass and power
Key Findings
Vitamin D supplementation had a small but significant positive effect on global muscle strength, particularly in deficient individuals, with no significant effect on muscle mass or power
Conclusions
Vitamin D supplementation appears beneficial for muscle strength, especially with baseline deficiency
Limitations
Substantial heterogeneity in dose, duration, baseline status and outcome measures
Supplements Studied
There is growing evidence that vitamin D plays a role on several tissues including skeletal muscle.
Outcomes Measured
Results revealed a small but significant positive effect of vitamin D supplementation on global muscle strength with a standardized mean difference (SMD) of 0.17 (P = .02). No significant effect was found on muscle mass
Related Health Concerns
Study Details
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This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.