Caffeine ingestion improves muscular strength and power (meta-analysis)
Grgic J, et al.
Evidence is still building up
Summary
Pooling RCTs, caffeine produced small but significant improvements in maximal strength and power. Effect sizes were modest and influenced by individual variation and tolerance.
Key findings
- 1
Small gains in maximal strength and power
- 2
Effects seen around 3–6 mg/kg body weight
- 3
Habitual use may blunt the effect via tolerance
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