Research summary · Nutrition and energy
Supplements and lower-limb power: signals with uneven certainty
A large network review compares dietary supplements across four separate lower-limb power and jump outcomes.
- Publication year
- 2026
- First published online
- Publication type
- Systematic review and Bayesian network meta-analysis
- Journal
- Journal of the International Society of Sports Nutrition
- Population / context
- Physically active people and athletes · Power and jump tests
What the publication reports
The review included 119 randomised parallel or crossover studies. HMB showed favourable estimates for peak and relative peak power; several other supplements showed outcome-specific signals, including betaine for countermovement jump and iron for vertical jump, although the iron estimate came from one direct study.
Limits and interpretation
Of 1,636 pairwise comparisons, 1,564 were graded very low certainty and only 17 moderate. Sparse networks, imbalanced covariates and sensitivity analyses that attenuated some findings mean rankings should not guide an individual supplement regimen.
Read the source
Consult the original record for the full author list, methods, references, funding and competing-interest disclosures.
Effects of dietary supplements on lower-limb power and jump performance in physically active individuals and athletes: a systematic review and Bayesian network meta-analysis
Original publication / indexed recordPMID: 42821324DOI: 10.1080/15502783.2026.2740221Full text at the sourceReader discussion
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