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Beetroot (Dietary Nitrate): Uses, Benefits, Dosage & Safety

Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy

Quick summary

Beetroot is a dietary source of nitrate that the body turns into nitric oxide, relaxing blood vessels. It has reasonably good evidence for modestly lowering blood pressure and a smaller effect on exercise endurance.

What is Beetroot (Dietary Nitrate)?

Beetroot is a root vegetable rich in dietary nitrate. As a supplement it comes as beet juice, powders and concentrated 'shots', popular with athletes and people interested in blood pressure and circulation. Its active principle is nitrate, which the body converts into nitric oxide — the same vasodilating molecule that ingredients like L-arginine and L-citrulline target, but reached by a different route.

What Beetroot (Dietary Nitrate) is commonly used for

In supplements, Beetroot (Dietary Nitrate) is most often included for men's vitality & testosterone support. It is used as nutritional support, not as a treatment for any medical condition — the distinction matters, because the claims on a sales page are often stronger than the evidence allows.

How Beetroot (Dietary Nitrate) works

Dietary nitrate from beetroot is converted (with help from mouth bacteria) into nitrite and then nitric oxide, a molecule that relaxes and widens blood vessels. This improves blood flow and can modestly lower blood pressure. In exercise, better blood flow and improved efficiency of muscle energy use are thought to underlie beetroot's small endurance benefits. A harmless quirk: beetroot can turn urine or stool pink-red (beeturia).

What the evidence says

Here's an honest snapshot of what published research suggests about Beetroot (Dietary Nitrate) — including where the evidence is limited.

Typical dosage used in studies

Studies often use beet juice supplying roughly 300-600 mg (about 5-10 mmol) of nitrate, taken a few hours before the desired effect. Nitrate content varies widely between products. This is research information, not a recommendation.

Side effects and safety

Beetroot is a food and very safe; the main 'effect' is harmless pink-red urine or stool. Because it lowers blood pressure, that is the main interaction to keep in mind.

Medication interactions and who should avoid Beetroot (Dietary Nitrate)

Medication & safety check

People on blood-pressure medication should be aware of additive blood-pressure lowering. Those prone to kidney stones should note beetroot is fairly high in oxalate. Avoid antibacterial mouthwash around the time of dosing, as it can blunt the nitrate-to-nitric-oxide conversion.

This is general information, not personal medical advice. If you take any medication, confirm it's safe to combine with Beetroot (Dietary Nitrate) with your doctor or pharmacist first.

Sources & further reading

The evidence summary above is drawn from these sources. For general, authoritative background you can also consult:

Frequently asked questions

Does beetroot lower blood pressure?

Yes — there's reasonably good evidence for a modest reduction, especially in systolic pressure, via nitric oxide. It's not a replacement for blood-pressure medication.

Does beetroot improve exercise performance?

There's evidence for a small endurance and efficiency benefit, which is why it's popular with athletes.

Why does beetroot turn my urine red?

That's beeturia — a harmless effect of beet pigments, not a cause for concern.

How much beetroot do I need?

Studies often use beet juice supplying about 300-600 mg of nitrate, but content varies a lot between products.

Does mouthwash affect it?

Yes — antibacterial mouthwash can reduce the mouth bacteria that help convert nitrate to nitric oxide, blunting the effect.

Supplements that contain Beetroot (Dietary Nitrate)

On FactoWiki, Beetroot (Dietary Nitrate) appears in these reviewed products. Each review breaks down the full formula, pricing and safety.