*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any supplement regimen.
TL;DR: Research suggests that beetroot supports cardiovascular health through multiple pathways. Its dietary nitrates fuel nitric oxide production, which promotes vasodilation and healthy blood flow. Beyond blood pressure, studies indicate that beetroot may support endothelial function, help maintain arterial flexibility, provide antioxidant protection through betalains, and support healthy inflammatory responses. Emerging research is also exploring beetroot's role in exercise capacity for people with heart-related health concerns. Below is a section-by-section breakdown of the evidence.
Last updated: March 2026
How Does Beetroot Support Cardiovascular Health?
Beetroot (Beta vulgaris) is one of the richest dietary sources of inorganic nitrate — a compound the body converts into nitric oxide (NO). Nitric oxide signals blood vessel walls to relax and widen, a process called vasodilation. This reduces vascular resistance and allows blood to flow more freely to your heart, brain, and muscles.
But beetroot's cardiovascular benefits extend beyond a single mechanism. The root vegetable also contains betalains (potent antioxidant pigments), polyphenols, dietary fiber, folate, and potassium — all of which play roles in cardiovascular wellness.
A comprehensive review published in Nutrients by Clifford et al. (2015) concluded that beetroot and its constituents demonstrated favorable effects across several cardiovascular risk markers, including blood pressure, endothelial function, arterial stiffness, and inflammation (PubMed).
Here is what the research says about each mechanism.
What Is the Connection Between Beetroot, Nitric Oxide, and Heart Health?
Nitric oxide is the body's primary vasodilator. When NO levels are adequate, blood vessels stay flexible and responsive. When NO levels decline — as they naturally do with aging — vessels become stiffer and blood flow becomes less efficient.
Beetroot supports NO production through the nitrate-nitrite-NO pathway:
- Dietary nitrate from beetroot is absorbed in the gut.
- Oral bacteria on the tongue convert nitrate (NO₃⁻) to nitrite (NO₂⁻).
- Nitrite is further reduced to nitric oxide in the stomach and blood vessel walls.
- Nitric oxide signals smooth muscle cells to relax, widening blood vessels and reducing vascular resistance.
This pathway becomes especially important as we age because the body's other NO production system — the enzymatic L-arginine pathway — becomes less efficient over time. Research published in Circulation Research by Lundberg et al. (2008) identified the nitrate-nitrite-NO pathway as a critical "backup system" for maintaining cardiovascular NO availability when enzymatic production declines (PubMed).
For a deeper look at how nitric oxide supports blood flow: Nitric Oxide for Blood Flow and Circulation: What You Need to Know
Can Beetroot Help Support Healthy Blood Pressure?
Blood pressure is one of the most well-studied aspects of beetroot supplementation — and one of the most direct markers of cardiovascular health. When blood pressure stays within a healthy range, the heart does not have to work as hard to circulate blood, which supports long-term cardiac function.
A meta-analysis by Siervo et al. (2013) in the Journal of Nutrition, analyzing 16 randomized controlled trials, found that beetroot juice supplementation was associated with a mean systolic blood pressure reduction of approximately 4.4 mmHg (PubMed). A later dose-response analysis by Bahadoran et al. (2017) in Nitric Oxide confirmed that at least 300mg of dietary nitrate per day was needed for significant effects (PubMed).
For context, population-level reductions of even 2 mmHg in systolic blood pressure have been associated with meaningful cardiovascular outcomes at scale.
We have covered the blood pressure evidence in detail here: Beetroot and Blood Pressure: What the Research Says
Does Beetroot Support Endothelial Function?
The endothelium is the single-cell-thick layer lining every blood vessel in your body. It is far more than a passive barrier — it actively regulates blood flow, vascular tone, clotting, and immune response. Healthy endothelial function is considered a cornerstone of cardiovascular wellness.
When the endothelium functions well, it continuously produces nitric oxide to keep vessels relaxed and responsive. When endothelial function declines — due to aging, oxidative stress, poor diet, or inactivity — NO production drops, and blood vessels become stiffer and less adaptive.
Research suggests beetroot may support endothelial function through its nitrate content. A randomized crossover trial by Bondonno et al. (2015) in Clinical Nutrition found that dietary nitrate from beetroot juice was associated with improved flow-mediated dilation (FMD) — the gold-standard measure of endothelial function — in overweight and obese older adults (PubMed).
FMD measures how well an artery widens in response to increased blood flow. Higher FMD scores indicate healthier, more responsive blood vessels. The fact that beetroot was associated with improved FMD in older adults — a population particularly vulnerable to endothelial decline — is encouraging.
Can Beetroot Help Maintain Arterial Flexibility?
Arterial stiffness is one of the earliest detectable markers of cardiovascular aging. When arteries become rigid, the heart has to work harder to circulate blood, and organs may receive less efficient flow.
A systematic review by Bahadoran et al. in Nitric Oxide examined the evidence on dietary nitrate and vascular function. Several trials reported associations between beetroot supplementation and improvements in arterial compliance markers, though results varied by population and study duration (PubMed).
The mechanism is straightforward: nitric oxide signals smooth muscle in artery walls to relax, maintaining the elasticity arteries need to function well. When NO levels decline with age, arterial stiffness tends to increase. Supporting NO production through dietary nitrate may help maintain that flexibility over time.
How Do Betalains in Beetroot Support Heart Health?
Betalains are the pigments responsible for beetroot's deep red-purple color. But they are more than pigments — they are potent antioxidants with properties that may support cardiovascular wellness through mechanisms distinct from the nitrate pathway.
Here is how betalains may contribute to heart health:
- Antioxidant activity: Betalains neutralize reactive oxygen species (free radicals) that can damage blood vessel walls and contribute to oxidative stress. A study by Kanner et al. (2001) in the Journal of Agricultural and Food Chemistry identified beetroot betalains as having significant antioxidant capacity, comparable to or exceeding some well-known antioxidants (PubMed).
- Oxidative stress reduction: Oxidative stress is a key factor in cardiovascular aging. By scavenging free radicals, betalains may help protect the endothelium and maintain healthy vascular function.
- Lipid oxidation: Preliminary research suggests betalains may help reduce the oxidation of LDL cholesterol — a process linked to the formation of arterial plaques. While this area needs more human trials, the antioxidant mechanism is well-documented in laboratory studies.
It is worth noting that betalains are unique to a small number of foods, with beetroot being the most widely consumed source. This is one reason beetroot offers cardiovascular benefits that go beyond what other nitrate-rich vegetables (like spinach or arugula) provide.
Does Beetroot Affect Inflammation Markers?
Chronic low-grade inflammation is increasingly recognized as a contributing factor to cardiovascular health concerns. Beetroot contains several anti-inflammatory compounds, including betalains and polyphenols.
A review by Clifford et al. (2015) in Nutrients concluded that beetroot supplementation was associated with reductions in several inflammatory markers in human studies, though more large-scale trials are needed to confirm these findings (PubMed).
Oxidative stress and inflammation often reinforce each other — reducing one can help reduce the other. By addressing both through its betalains and nitrate content, beetroot may provide more comprehensive cardiovascular support than compounds targeting a single pathway.
What Does the Research Say About Beetroot and Exercise Capacity in Heart Health?
An emerging area of research involves beetroot supplementation in individuals with reduced exercise capacity due to heart-related health concerns, particularly heart failure with preserved ejection fraction (HFpEF). Because nitric oxide supports oxygen delivery to working muscles, researchers have investigated whether dietary nitrate might help support exercise tolerance in these populations.
For a focused look at this topic, see our best beet gummies for heart health.A randomized, double-blind crossover trial by Eggebeen et al. (2016) in JACC: Heart Failure found that dietary nitrate from beetroot juice was associated with improved peak oxygen consumption (VO₂) and exercise tolerance in HFpEF patients compared to placebo (PubMed). Zamani et al. (2015) in Circulation: Heart Failure reported similar associations with improved submaximal aerobic endurance in heart failure patients (PubMed).
These are small, early-stage studies, and dietary supplements should never replace prescribed treatment for heart conditions. But the results suggest that beetroot's cardiovascular benefits may extend beyond healthy populations.
Who Benefits Most from Beetroot for Heart Health?
Based on the available evidence, certain groups appear to respond more favorably to dietary nitrate from beetroot for cardiovascular support:
- Adults over 50: Nitric oxide production declines naturally with age. Supporting NO through dietary nitrate may help compensate for this age-related decline, supporting blood vessel flexibility and blood flow.
- People with elevated (but not severely high) blood pressure: Research consistently shows that individuals with pre-hypertensive readings tend to experience the most pronounced effects from dietary nitrate.
- Those seeking natural cardiovascular support: People looking for evidence-based, food-derived options to complement a heart-healthy lifestyle may find beetroot particularly relevant.
- Active adults concerned about cardiovascular fitness: The exercise capacity research suggests that nitric oxide support may benefit both athletic performance and cardiovascular exercise tolerance.
Those with already-optimal blood pressure, individuals using antibacterial mouthwash (which disrupts nitrate conversion), and people on medications affecting the nitric oxide system may see less pronounced effects. Always discuss supplementation with your healthcare provider.
How Can You Get Enough Beetroot for Heart Health?
Clinical studies on beetroot and cardiovascular health have typically used doses providing 300–600mg of dietary nitrate per day. In practical terms, this translates to approximately:
- 1–2 cups of beetroot juice (250–500ml)
- 200–300g of raw beetroot (about 1.5–2 medium beets)
- Concentrated beetroot supplements — using extracts that deliver a meaningful dose in a more convenient format
For those who prefer supplements over juice or whole beets, Zenith Formulas Beetroot Gummies deliver 100mg of 10:1 beetroot extract per serving — equivalent to 1,000mg of whole beetroot. They are formulated in the USA and combine beetroot with grape seed extract and an L-citrulline/L-arginine blend to support nitric oxide production through complementary pathways.
Regardless of format, consistency matters more than any single dose. Research suggests that sustained daily intake over 4–6 weeks or longer is more likely to produce the cardiovascular benefits observed in clinical trials than occasional use.
For a comprehensive look at all of beetroot's benefits: Beetroot Benefits: The Complete Guide
Frequently Asked Questions
Is beetroot good for your heart?
Research suggests that beetroot supports cardiovascular health through multiple mechanisms. Its dietary nitrates fuel nitric oxide production, which promotes vasodilation and healthy blood flow. Beetroot also contains betalains (unique antioxidants), anti-inflammatory compounds, and potassium — all of which play roles in cardiovascular wellness. Multiple meta-analyses and clinical trials support these associations.
How does beetroot help with circulation?
Beetroot's dietary nitrates are converted into nitric oxide, which signals blood vessel walls to relax and widen (vasodilation). This reduces vascular resistance and supports oxygen and nutrient delivery to tissues throughout the body, including the heart and brain.
Can beetroot help with cholesterol?
Beetroot's betalain pigments have demonstrated antioxidant activity that may help reduce the oxidation of LDL cholesterol in laboratory studies. Oxidized LDL is considered more harmful to blood vessels than non-oxidized LDL. However, human clinical trials specifically examining beetroot's effects on cholesterol levels are limited, and more research is needed before definitive conclusions can be drawn.
How much beetroot should I take for heart health?
Most clinical studies used doses providing 300–600mg of dietary nitrate per day, equivalent to approximately 1–2 cups of beetroot juice or 200–300g of raw beet. Supplements using concentrated extracts (such as 10:1 ratios) aim to deliver meaningful amounts in a more convenient format. Consistency — taking it daily over weeks — appears to matter more than any single dose.
Does beetroot reduce inflammation?
Research suggests that beetroot's betalains and polyphenols have anti-inflammatory properties. A review published in Nutrients (Clifford et al., 2015) found associations between beetroot supplementation and reductions in several inflammatory markers. The anti-inflammatory and antioxidant effects likely work together to support cardiovascular health, though more large-scale human trials are needed.
Can beetroot replace heart medication?
No. Beetroot supplements are not a substitute for prescribed cardiovascular medication. The blood pressure effects observed in research (typically 3–7 mmHg systolic) are complementary, not curative. Beetroot should be viewed as part of a heart-healthy lifestyle alongside medical care, proper nutrition, and exercise. Never adjust your medication without your doctor's guidance.
Is beetroot safe for people with heart conditions?
Beetroot is generally well-tolerated in clinical research. However, its vasodilatory effects may interact with blood pressure medications and nitrate drugs. People with heart conditions or those on blood-thinning medications should consult their healthcare provider before starting any beetroot supplement.
How long does it take for beetroot to benefit heart health?
Acute effects on blood flow may begin within 2–3 hours of a single dose. However, sustained cardiovascular benefits — including endothelial function and arterial flexibility support — are more likely to emerge with consistent daily supplementation over 4–6 weeks or longer.
The Bottom Line
Beetroot is one of the more evidence-supported natural options for cardiovascular wellness. Its benefits span multiple mechanisms: nitric oxide production for vasodilation and healthy blood flow, betalains for antioxidant protection, anti-inflammatory compounds that support vascular health, and emerging evidence for exercise capacity support in populations with heart-related concerns.
The research is encouraging but not conclusive on every front. Most studies are relatively small and short-term, and individual responses vary. Beetroot supplementation should always complement — never replace — medical care and a heart-healthy lifestyle.
For people seeking natural, evidence-based approaches to cardiovascular support, beetroot represents a well-studied starting point — especially when combined with regular exercise, a balanced diet, and ongoing guidance from a healthcare provider.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.