Beet Juice and Endurance: Can It Really Boost Performance?

Beets might not be the first food that comes to mind when you think of sports performance, but this deep red vegetable has gained attention in the athletic world—especially in the form of beet juice.  Research suggests that beet juice may help improve stamina, efficiency, and overall performance during endurance exercise.^1,2,3

The Science Behind Beets

Beets are rich in dietary nitrates, which the body converts into nitric oxide. Nitric oxide helps relax and widen blood vessels, improving oxygen delivery to muscles.^1,2 This can enhance endurance, reduce the oxygen cost of exercise, and may even speed up recovery after intense sessions. ^1,2,3

How Beet Juice Impacts Endurance

Several studies have examined the effects of beet juice on performance, particularly in running, cycling, and rowing:

• Improved exercise efficiency: Athletes who consumed beet juice needed less oxygen to perform the same level of work, meaning they could go longer before fatiguing.²
  
• Extended time to exhaustion: Supplementation has been shown to help athletes last longer during high-intensity aerobic exercise.^2,3
  
• Potential performance boost in competition: When taken consistently before endurance events, beet juice has been linked to small but meaningful improvements in race times.³
  

While the exact impact varies between individuals, the overall evidence supports beet juice as a useful tool for endurance-based sports.

How to Use Beet Juice

For athletes interested in experimenting with beet juice, timing and dosage are important:

• Pre-exercise: Research suggests drinking beet juice about 2–3 hours before training or competition for optimal effects.^1,2
  
• Consistent use: Some studies show that drinking beet juice consistently may provide the greatest benefit long term.
  
• Pair with supportive fueling: Beet juice should complement—not replace—a well-balanced performance nutrition plan that includes carbohydrates, protein, hydration, and adequate rest.
  

Things to Keep in Mind

Beet juice is generally safe, but athletes should be aware of a few considerations:

• Digestive tolerance: Large amounts can cause stomach upset in some individuals. Start with smaller servings to see how your body responds.
  
• Beeturia: A harmless side effect where urine or stool may appear red or pink after consuming beets.
  

The Bottom Line

Beet juice isn’t a magic solution, but it can be a valuable addition to an endurance athlete’s toolkit. By improving blood flow and oxygen efficiency, it may help you train harder, perform longer, and recover more effectively. If you’re looking for a natural way to support endurance, experimenting with beet juice could be worth a try—just remember that it works best when paired with the fundamentals of training, fueling, and recovery.

Citations

1. Wein, D. A., & Murphy, K. (2013). Beetroot juice supplementation and exercise (Vol. 1, Iss. 1). Personal Training Quarterly. National Strength and Conditioning Association.
2. Jones, A. M. (2022). Dietary nitrate and exercise performance: New strings to the beetroot bow. https://www.gssiweb.org/en/sports-science-exchange/Article/dietary-nitrate-and-exercise-performance-new-strings-to-the-beetroot-bow.
3. Balsalobre-Fernández, C., Romero-Moraleda, B., Cupeiro, R., Peinado, A. B., Butragueño, J., & Benito, P. J. (2018). The effects of beetroot juice supplementation on exercise economy, rating of perceived exertion and running mechanics in elite distance runners: A double-blinded, randomized study. PloS one, 13(7), e0200517.