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Head-to-head evidence comparison — which supplement is right for you?
Arginine vs Beetroot: Beetroot has the stronger overall evidence (7.5 vs 7.5/10); they're alternatives for improve endurance — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Beetroot wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
13 of 21 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
27 of 30 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Arginine and Beetroot have evidence — compare verdict strength side-by-side.
3-6g daily
30-60 minutes before exercise, Divided doses throughout the day for cardiovascular benefits
L-Arginine powder or capsules
400-500mg nitrates (or 500ml beetroot juice)
2-3 hours before exercise
Concentrated beetroot shots (70ml)
30-60 minutes
During exercise
2-4 weeks
Immediate
2-3 hours after intake
2-3 hours
Immediate
30-60 minutes
Nutritional interventions for preventing and treating pressure ulcers
The Cochrane database of systematic reviews (2024) · Meta analysis · n=7920
Compared to standard diet, protein supplements may result in little to no difference in pressure ulcer incidence (protein 21 per 1000, standard diet 28 per 1000; RR 0.75, 95% CI 0.49 to 1.14; 4 studies, 4264 participants; low-certainty evidence).
Comparative Effects of Different Nutritional Supplements on Inflammation, Nutritional Status, and Clinical Outcomes in Colorectal Cancer Patients: A Systematic Review and Network Meta-Analysis
Nutrients (2023) · Meta analysis · n=2841
Glutamine was superior in decreasing tumor necrosis factor-α (MD -25.2; 95% CrI [-32.62, -17.95]), whereas combined omega-3 and arginine supplementation was more effective in decreasing interleukin-6 (MD -61.41; 95% CrI [-97.85, -24.85]).
Nutritional interventions for treating foot ulcers in people with diabetes
The Cochrane database of systematic reviews (2020) · Meta analysis · n=629
It is also uncertain whether arginine, glutamine and β-hydroxy-β-methylbutyrate supplement increases the proportion of ulcers healed at 16 weeks compared with placebo (RR 1.09, 95% CI 0.85 to 1.40).
Dietary Nitrate Supplementation and Exercise Performance: An Umbrella Review of 20 Published Systematic Reviews with Meta-analyses
Sports Medicine (2025) · Meta analysis · n=2000
Twenty systematic reviews with meta-analyses, representing 180 primary studies and 2672 unique participants, met the inclusion criteria.
Effects of Beetroot Juice on Physical Performance in Professional Athletes and Healthy Individuals: An Umbrella Review
Nutrients (2025) · Systematic review · n=1500
Fifteen meta-analyses were included in this Umbrella Review.
Sport supplementation in competitive swimmers: a systematic review with meta-analysis
Journal of the International Society of Sports Nutrition (2025) · Meta analysis · n=23
This revision included 23 studies, 16 of them (69.6%) qualified as excellent and 7 (30.4%) as good at the methodological level based on the punctuation in the PEDro scale.
Based on meta-analysis showing mean reductions of 5.39 mmHg systolic and 2.66 mmHg diastolic. Effects are modest and may not be clinically significant for all individuals. GI side effects increase notably above 6g.
Based on meta-analysis of 2000+ subjects showing 515-1017mg effective range. Effects more pronounced in hypoxic conditions and fatigue states. Individual response varies significantly between athletes vs non-athletes.
AI-estimated from published studies. Interpret as directional guidance.
Beetroot has a higher evidence score (7.5/10 vs 7.5/10) and wins in 2 of 3 categories.
For improve endurance, Beetroot has a higher relevance score (95 vs 65).
No known interactions between Arginine and Beetroot have been documented in our database. However, always consult a healthcare provider before combining supplements.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.