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Research summary · Nutrition and energy

Caffeine and cycling performance in women

A female-specific meta-analysis estimates the acute effect of caffeine on cycling performance outcomes.

Publication year
2026
First published online
Publication type
Systematic review and three-level meta-analysis
Journal
International Journal of Sport Nutrition and Exercise Metabolism
Population / context
Female cyclists and cycling trials

What the publication reports

Nineteen randomised crossover studies included 235 participants. The pooled effect was small (standardised mean difference 0.21) and graded high certainty, supporting a modest average improvement rather than a large or universal response.

Limits and interpretation

Menstrual-cycle phase and hormonal-contraceptive use were incompletely represented, protocols varied and some studies had risk-of-bias concerns. Group averages do not establish an individual dose, benefit or safety profile.

Original editorial summary by iintroo editorial · Added · Source-checked .

This is an educational research summary, not a reproduced abstract, a new scientific study or an individual treatment plan.

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