Evidence that beetroot juice can improve athletic performance has long been inconsistent. While some studies reported benefits, others found little or no effect. Now, a new study, combining results from 33 studies, provides the clearest evidence yet that it can enhance exercise performance.
The meta-analysis included data from more than 500 professional and recreational athletes. The results showed that consuming beetroot juice before exercise made a measurable difference to how well they were able to tolerate an intense session.