Research
Energy balance
Beetroot juice supplementation did not enhance cycling time trial performance when used alone or in combination with caffeine.
Beetroot juice may not be effective for enhancing cycling performance in competitive settings.
StrongRefutesmedium confidence
There was no effect of BJ supplementation when used alone (-0.4%, p = 0.6 compared with CONT) or when combined with caffeine (-0.9%, p = 0.4 compared with CAFF).
Why this rating
Based on study design from abstract.
Source
Single and combined effects of beetroot juice and caffeine supplementation on cycling time trial performance
Stephen C. Lane et al. · Applied Physiology Nutrition and Metabolism · 2013
DOI 10.1139/apnm-2013-0336
rct · n=24Cited 105×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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