Beetroot has quietly become one of the more evidence-backed foods in sports nutrition, mostly because of its effect on nitric oxide, a molecule involved in how blood vessels widen and blood flows through the body. Athletes have used beet juice for years, and the same mechanism explains most of the everyday claims about beetroot and circulation.
Most of what gets said about beetroot online swings between two extremes: dismissing it as a food trend with no real backing, or treating it as a near-universal fix for anything related to blood flow, stamina or male performance. Neither extreme holds up well against the actual research, which is more specific, and more interesting, than either version.
This article looks at what beetroot actually does physiologically, what the research supports for stamina, blood flow and, more cautiously, erectile function, and separates that from the less accurate claims, like the idea that beetroot meaningfully raises testosterone. We will also cover practical ways to use it, including how much is actually needed and where gummies fit compared with juice.
What Beetroot Actually Does in the Body
Beetroot is naturally high in dietary nitrates, compounds that the body converts, through a multi-step process involving oral bacteria and stomach acid, into nitric oxide. Nitric oxide is a signalling molecule that causes the smooth muscle lining blood vessels to relax, which widens the vessel and allows more blood to flow through with less resistance.
This nitrate-to-nitric-oxide pathway is well established in the research, unlike some more speculative supplement mechanisms, and it is the basis for essentially every specific, evidence-backed claim made about beetroot, from exercise performance to blood pressure to circulation-related outcomes.
Beetroot also contains betalains, the pigments responsible for its deep red colour, which have their own antioxidant and mild anti-inflammatory properties in lab studies, though the nitrate pathway is the more studied and better understood of beetroot's two main mechanisms.
It is worth noting that not all vegetables high in nitrates work the same way once eaten. Cooking method, gut bacteria and even the mouthwash someone uses can all affect how much of the nitrate in a beet actually converts to nitric oxide, which is one reason study results vary somewhat from person to person even at similar doses.
Beetroot, Nitric Oxide and Blood Flow
Multiple controlled trials have measured blood pressure and blood flow markers after beetroot juice consumption, generally finding modest reductions in blood pressure within a few hours of a single dose, and more meaningful changes with regular daily intake over one to two weeks.
The effect size is real but modest, typically single-digit reductions in systolic blood pressure in most studies, comparable to some lifestyle interventions rather than to blood pressure medication. It is a genuine physiological effect, not a dramatic one, and framing it that way is more accurate than most beetroot marketing manages.
Because the mechanism runs through nitric oxide and vessel dilation broadly, rather than targeting one specific organ or system, the blood flow benefits are generalised across the body, which is the underlying reason beetroot gets connected to such a wide range of downstream claims, from exercise capacity to circulation in extremities to sexual function.
Beetroot and Stamina
The strongest and most replicated research on beetroot is in exercise performance, specifically endurance and time-to-exhaustion tests. Multiple studies in both trained and untrained individuals have found that beetroot juice, taken a few hours before exercise, modestly improves oxygen efficiency, meaning the body uses slightly less oxygen to perform the same amount of work.
This translates to measurable, if modest, improvements in time trial performance and time to exhaustion in a reasonable number of controlled studies, which is a more consistent evidence base than most sports supplements can claim. The effect appears to depend on nitrate dose and is more noticeable in submaximal, sustained efforts than in short, maximal bursts.
It is worth being clear about scale here too. This is not a supplement that turns an average athlete into an elite one. The improvements reported in trials are typically in the low single digits for time trial performance, which can matter at a competitive level but is unlikely to be something a recreational exerciser notices without formal testing.
Do Beets Help With ED? An Honest Answer
The logic connecting beetroot to erectile function is straightforward and physiologically sound: erections depend on blood flow, blood flow depends partly on nitric oxide-driven vessel dilation, and beetroot supports nitric oxide production. That chain of reasoning is accurate as far as it goes.
What is less accurate is treating beetroot as a direct, proven solution for erectile difficulties. The clinical research specifically testing beetroot or beet juice against erectile function outcomes is limited, and most of what exists is small, short-term, or extrapolated from broader blood-flow and blood-pressure data rather than measuring the specific outcome directly.
This puts beetroot in a reasonable but modest category: a plausible, mechanistically sound supporting factor for healthy circulation generally, not a targeted or proven solution for erectile difficulties specifically, which often have multiple contributing causes, including stress, sleep, cardiovascular health and medication side effects, that a vegetable extract is not going to resolve on its own.
If erectile difficulties are persistent, the more useful step is a conversation with a doctor to rule out underlying cardiovascular or hormonal causes, since those are both more common explanations and more directly treatable than anything a supplement addresses on its own.
The Testosterone Myth
Beetroot gets linked to testosterone fairly often in supplement marketing, but this connection is considerably weaker than the nitric oxide and blood flow story. There is no strong mechanistic pathway connecting dietary nitrates to hormone production, and the clinical research specifically measuring beetroot's effect on testosterone is sparse and inconsistent.
It is worth being direct here: if a product markets beetroot primarily as a testosterone booster, that claim is not well supported by the current evidence, and it is a good sign to look more critically at the rest of that product's claims too.
This confusion likely comes from beetroot getting lumped in with other circulation-focused ingredients, some of which do have more direct hormonal research behind them. Blood flow and hormone production are related systems, but supporting one does not automatically mean a meaningful effect on the other, and the research on beetroot specifically has not shown that it does.
Beet Gummies Benefits: Why the Format Is Growing
Beet juice has an intense, earthy taste that a lot of people find hard to drink consistently, and the effective dose used in most exercise-performance studies, often equivalent to several hundred grams of whole beets, is more than most people want to consume or juice daily.
Gummies and concentrated extracts, like our Organic Beetroot Gummies, aim to close that gap by delivering a standardised nitrate dose without the taste barrier or the preparation effort of juicing, which matters more for long-term consistency than most people give it credit for, since the blood flow benefits depend on regular, not occasional, intake.
The tradeoff is that concentrated extracts need to be transparent about actual nitrate content, since a beetroot powder without a stated nitrate value makes it hard to know whether a serving is anywhere close to what the research studies actually used.
How to Actually Use Beetroot
For general circulation support, consistency matters more than timing, since the blood-pressure and blood-flow benefits build with regular daily intake over one to two weeks rather than appearing after a single dose. For a pre-exercise performance effect specifically, most research protocols dose beetroot two to three hours before activity.
Whether from juice, whole beets or a standardised gummy like our Organic Beetroot Gummies, the practical goal is the same: a consistent daily nitrate intake, sustained over weeks, rather than an occasional dose treated like a pre-workout stimulant.
Frequently Asked Questions
Do beets help with blood flow?
Yes, through a well-established mechanism involving dietary nitrates converting to nitric oxide, which relaxes blood vessels and improves blood flow. The effect is real but modest, and builds with consistent daily intake rather than appearing after one serving.
Do beets help with ED?
There is a plausible mechanistic connection through blood flow, but direct clinical evidence specifically testing beetroot against erectile function outcomes is limited. It is a reasonable supporting factor alongside broader cardiovascular health, not a proven standalone solution, and persistent symptoms are worth discussing with a doctor.
How much beetroot should a man take daily?
Most research protocols use an amount providing roughly 300 to 500 milligrams of dietary nitrates daily, which is a meaningfully large quantity of whole beets or juice, and is the target a standardised extract or gummy should aim to match. Checking the label for an actual nitrate figure is more useful than judging by serving size alone.
Does beetroot raise testosterone?
The evidence for this specific claim is weak and inconsistent. Beetroot's better-supported effects are on blood flow and exercise performance, not hormone levels, and it should not be chosen specifically for that purpose.
Are beet gummies as good as beet juice?
A well-formulated gummy with a stated, adequate nitrate content can deliver a comparable dose to juice without the taste barrier, though it depends entirely on the actual nitrate content, which is worth checking on the label rather than assuming, since not all beetroot products are dosed the same way.
Supporting Circulation the Simple Way
Beetroot's case is one of the more straightforwardly evidence-based stories in the supplement world: a well-understood mechanism, a reasonable number of controlled trials, and modest but real effects on blood flow and exercise performance. It is not a proven fix for erectile difficulties and it is not a testosterone booster, whatever some marketing claims. Approached with those honest limits in mind, a consistent daily source of dietary nitrates, whether that is juice, whole beets, or a convenient option like our Organic Beetroot Gummies, is a reasonable, low-risk addition for anyone specifically interested in circulation support.