Beetroot
Also known as: Beta vulgaris, Beetroot Juice, BRJ, Dietary Nitrate, Betalain, Betanin
Effective Dosage
~400-600 mg nitrate daily (from beetroot juice); No established dose for betalain/betanin supplementation
What the Science Says
Beetroot is a root vegetable rich in dietary nitrates and pigments called betalains (including betanin). The nitrates in beetroot juice convert to nitric oxide in the body, which can relax blood vessels and improve oxygen delivery to muscles — effects that may modestly improve endurance, agility, and strength performance in athletes. Some early research also suggests betalain pigments may have antioxidant and anti-inflammatory properties, with animal studies showing potential benefits for blood sugar regulation, though human evidence for these effects is limited.
What It Doesn't Do
Won't dramatically transform athletic performance — real-world power output gains in cyclists were small and not statistically significant in one well-designed trial. Not a proven treatment for diabetes in humans — blood sugar benefits come from rat studies only. Not a fat-burner — a small trial in diabetic adults found no meaningful change in brown fat activation. Won't replace training — strength and jump improvements in one study were largely driven by the exercise program, not the juice.
Evidence-Based Benefits
Beetroot is rich in nitrates, which can enhance exercise performance by improving blood flow and reducing oxygen consumption during physical activity. It has also been shown to lower blood pressure and improve cardiovascular health in some studies.
Strong EvidenceEffective at: 300-600 mg daily
Source: auto-research
Absorption & Bioavailability
Moderate — dietary nitrates from beetroot juice are well-absorbed in the gut and converted to nitric oxide via the enterosalivary pathway. Betalain absorption is variable and generally lower than nitrate. Chewing and oral bacteria play a role in nitrate conversion, so antibacterial mouthwash can blunt effects.
Red Flags to Watch For
- Placebo effects may account for a significant portion of perceived performance benefits — one balanced placebo cycling trial found no statistically significant effect of actual beetroot juice on power output
- Most betalain/betanin health benefits (blood sugar, anti-cancer, metabolic) come from animal or lab studies only — do not assume these translate to humans
- Beeturia (red/pink urine) is harmless but can alarm users unfamiliar with it
- Products vary widely in nitrate content — juice, powder, and capsule forms are not equivalent; many supplements do not disclose actual nitrate dose
- Using antibacterial mouthwash before or after consumption can block the nitrate-to-nitric oxide conversion, eliminating the main proposed mechanism
Products Containing Beetroot
See how Beetroot is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06