Beetroot juice supplementation, plasma nitrite and exercise performance: a systematic review and meta-analysis
Hoon MW, Johnson NA, Chapman PG, Burke LM
Published in International Journal of Sport Nutrition and Exercise Metabolism
Methodology
Meta-analysis of randomized crossover trials of nitrate-rich beetroot juice measuring plasma nitrite and endurance performance.
Key Findings
Nitrate elevated plasma nitrite and produced a moderate improvement in time-to-exhaustion, with little effect on time-trial performance in trained athletes.
Conclusions
Raising nitric oxide availability improves submaximal exercise tolerance more than competitive performance.
Limitations
Small crossover trials; trained athletes respond less.
Supplements Studied
Nitrate elevated plasma nitrite and improved time-to-exhaustion
Outcomes Measured
Nitrate elevated plasma nitrite and produced a moderate improvement in time-to-exhaustion
Nitrate elevated plasma nitrite and produced a moderate improvement in time-to-exhaustion
Nitrate supplementation improved exercise efficiency and performance measures versus placebo
Dietary nitrate from beetroot improved vascular function and lowered blood pressure
Beetroot juice supplementation improved exercise performance alongside raised plasma nitrite.
Study Details
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