Effects of Beetroot Juice Supplementation on Cardiorespiratory Endurance in Athletes. A Systematic Review
Domínguez R, Cuenca E, Maté-Muñoz JL, García-Fernández P
Published in Nutrients
Methodology
Systematic review of 23 studies (2010-2016) on beetroot juice and cardiorespiratory endurance in athletes across five databases
Key Findings
Beetroot juice improved exercise efficiency, performance over various distances and time to exhaustion at submaximal intensities, with possible improvements at anaerobic threshold and maximal oxygen uptake; effects were smaller in highly trained athletes.
Conclusions
Dietary nitrate from beetroot juice can improve cardiorespiratory endurance, mainly by improving efficiency rather than raising maximal oxygen uptake itself.
Limitations
Narrative synthesis without pooled estimates; heterogeneous dosing and athlete calibre
Outcomes Measured
The available results suggest that supplementation with beetroot juice can improve cardiorespiratory endurance in athletes by increasing efficiency
Study Details
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