Beetroot Juice for Sports Nutrition: New Meta-Analysis Explores Efficacy for Performance Enhancement

A systematic review and meta-analysis published in Frontiers in Nutrition has provided a comprehensive evaluation of beetroot juice for its potential effects on aerobic and anaerobic exercise performance.¹ As supplement strategies gain traction as non-pharmaceutical performance enhancements, beetroot juice has recently emerged as a focus in athletic performance research due to its high inorganic nitrate content and potential as a natural supplement for performance-enhancing effects, the researchers note. This study synthesizes clinical data regarding how beetroot juice supplementation simultaneously influences both aerobic and anaerobic exercise capacities, offering data points for future product development.

How Does Beetroot Juice Influence Exercise Physiology?

As explained in the study, upon ingestion, the nitrates from beetroot juice are metabolized via the nitrate–nitrite–nitric pathway. Nitric oxide serves as a critical signaling molecule that regulates blood flow perfusion, enhances mitochondrial function, optimizes muscle contraction efficiency, and decreases oxygen consumption during physical exertion. While previous studies have historically reported conflicting results regarding performance-enhancing consistency, this meta-analysis sought to clarify these discrepancies by analyzing aggregated data across high-intensity interval sprint (HIS) performance, mean power output (MPO), and maximal oxygen uptake (VO₂max).

What Were the Key Quantitative Findings?

The researchers conducted a systematic screening across six major databases up to March 1, 2026, ultimately incorporating 33 peer-reviewed studies into their quantitative synthesis. The overall findings demonstrated statistically significant performance improvements across all three primary outcomes, accompanied by low statistical heterogeneity.

For anaerobic performance metrics, beetroot juice supplementation enhanced HIS performance, yielding a standardized mean difference (SMD) of 0.38. Similarly, MPO saw a significant increase with an SMD of 0.43, demonstrating no detectable heterogeneity. In the aerobic domain, beetroot juice supplementation delivered a statistically significant improvement in VO₂max, showing an SMD of 0.30.

The meta-analysis was limited by small sample sizes and a low number of trials within specific subgroups, which reduced statistical precision. Additionally, the researchers did not evaluate dose-response relationships, long-term safety, or physiological mechanisms. Because tests for between-subgroup heterogeneity were statistically non-significant, these localized findings remain strictly hypothesis-generating rather than definitive conclusions for formulation design. “In summary, while beetroot juice may be a useful sports nutrition strategy, its practical application should consider exercise type, dosage, timing, and athlete characteristics,” the researchers concluded overall.

Which Modifying Factors Impact Efficacy?

From a product development perspective, the study’s exploratory subgroup analyses offer strategic insights, though the researchers noted that between-subgroup heterogeneity tests did not achieve statistical significance, rendering these findings hypothesis-generating rather than definitive.

For HIS outcomes, statistically significant effects were observed in subgroups utilizing amateur athletes, team or individual sports, both acute and chronic loading strategies, and consumption timing of 2 to 2.5 hours before exercise. Conversely, significant gains in MPO were predominantly associated with acute supplementation strategies, specific commercial juice brands (such as Beet It), and intake windows of 2 to 2.5 hours pre-exercise. For VO₂max, significant improvements occurred primarily in professional athletes, individual sports participants, acute intake models, and self-prepared formulations.

What is the Broader Commercial Trajectory for Beet Root?

The meta-analysis results align with the commercial trajectory of the ingredient.² As industry reporting highlights, beetroot's market footprint has been expanding over the years, transitioning from a niche sports nutrition component into a mainstream functional ingredient that spans both athletic performance and broader cardiovascular health. By examining data for both aerobic and anaerobic pathways, this meta-analysis offers developers insight into this potential component for sport nutrition.

References

1. Cai C, Huang P, Cheng X, Zhou J. Effectiveness of beetroot juice on aerobic and anaerobic exercise performance: systematic review and meta-analysis. Front Nutr. 2026;13:1844096. doi:10.3389/fnut.2026.1844096
2. McEvoy E. Beet root on the rise: from athletic performance to heart health. March 10, 2025. Accessed July 1, 2026. https://www.nutritionaloutlook.com/view/beet-root-on-the-rise-from-athletic-performance-to-heart-health