Beetroot vs nitric oxide supplements: what's actually in each

Beetroot doesn't actually contain nitric oxide — it contains dietary nitrate, a compound the body can convert to nitrite and then to nitric oxide through a specific pathway. Supplements marketed as "nitric oxide boosters" usually use a different raw material entirely, most often L-arginine or L-citrulline, which reaches the same molecule through a separate route in the body.

Nobody actually sells nitric oxide

Nitric oxide is a gas the body produces and uses within seconds — it isn't stable enough to bottle, and no supplement, beetroot included, delivers it directly. What a "nitric oxide supplement" actually contains is a precursor: something the body can convert into nitric oxide internally. There are two common precursor routes on the market, and they aren't the same:

• Dietary nitrate — found in beetroot, beetroot juice, leafy greens and some synthetic nitrate salts. This is beetroot's connection to the topic.
• L-arginine or L-citrulline — amino acids that feed a completely different enzyme system (nitric oxide synthase). Products built around these ingredients aren't beetroot-based at all, even when they're marketed under the same "nitric oxide" branding.

How dietary nitrate becomes nitric oxide

A 2026 narrative review describes the pathway: bacteria on the back of the tongue convert dietary nitrate to nitrite, and that nitrite is converted toward nitric oxide, largely in the acidic environment of the stomach. The same review makes a point worth repeating here — beetroot juice, beetroot powder, other nitrate-rich vegetables and synthetic nitrate salts are not interchangeable exposure models. Food matrix and dose both change what actually gets delivered, so a nitrate figure measured in one form (concentrated juice, for example) doesn't automatically apply to another (a dried powder capsule).

What the research does and doesn't establish

The same review reports that nitrate-rich sources reliably raise nitrate and nitrite levels in the blood, with effects on blood pressure, vascular function and exercise that varied from study to study, and a safety picture that depends on the specific food source, dose and person rather than nitrate content alone — the authors say the evidence doesn't yet support one dosing recommendation across every source. For what the hypertension trials specifically found, see our beetroot and blood pressure research review. A separate 2025 review pooling 15 meta-analyses on beetroot juice and exercise performance found effects ranging from negligible to small, at nitrate doses of 515-1,017 mg a day — see beetroot benefits: what the research does and doesn't show for that research in full.

"1,300 mg" isn't a nitrate dose

Some product listings market beetroot capsules by their powder weight — "1,300 mg nitric oxide booster," for example — as if that number were a measured nitrate dose. It isn't. The research above measures nitrate content specifically, usually in concentrated juice; a powder's total weight and its actual nitrate content are two different numbers, and one doesn't tell you the other without lab testing. Electric Tiger Beetroot is 1,300 mg of whole dried beetroot powder per two-capsule serving — that's the powder weight on our label, and we don't have a lab-verified nitrate content on file for this product to compare against the research doses above.

Our label

Electric Tiger Beetroot provides 1,300 mg of whole organic beetroot powder per two-capsule serving, one ingredient and nothing else in the facts panel, 30 servings a bottle, as low as $14.39 on subscription.

Questions people ask

Does beetroot have nitric oxide?

No — beetroot contains dietary nitrate, which the body can convert to nitrite and then toward nitric oxide. The vegetable itself doesn't contain nitric oxide as a stored compound.

Is beetroot the same as a nitric oxide supplement?

Beetroot is one route to a nitric oxide precursor (dietary nitrate); many products branded as "nitric oxide supplements" instead use L-arginine or L-citrulline, which work through a different pathway in the body. Read the ingredient panel rather than the marketing name to know which one a product actually is.

Should I take beetroot or a nitric oxide booster?

That depends on which precursor's research you're weighing, and this page doesn't rank one against the other — they haven't been tested head-to-head. Check the specific ingredient and dose on any product's label, not just the "nitric oxide" name on the front.

Related reading: beetroot forms compared: capsule, powder and juice, beetroot benefits: what the research does and doesn't show, and beetroot and blood pressure: what the research does and doesn't show.