# Wake up and smell the coffee: caffeine supplementation and exercise performance — an umbrella review of 21 published meta-analyses

Grgic J, Grgic I, Pickering C, Schoenfeld BJ, Bishop DJ, Pedisic Z · British Journal of Sports Medicine 54(11):681–688 · 2020



## Key finding

Caffeine is ergogenic for endurance, strength and power — which is why timing (not abstinence) is the lever.



[Read the paper](https://pubmed.ncbi.nlm.nih.gov/?term=Wake+up+and+smell+the+coffee:+caffeine+supplementation+and+exercise+performance+—+an+umbrella+review+of+21+published+meta-analyses)

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Educational summary of published research, not medical advice. Screening scores are not diagnoses. If a score is elevated or you feel unwell, talk to a clinician.

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