Why a Beetroot Supplement Isn't the Same as Beetroot Juice

Beetroot has had a remarkable run in the cardiovascular wellness conversation over the last decade. Articles about beet juice and blood pressure show up in the Sunday health section. Beetroot capsules appear at the front of health-food stores and at the top of Amazon search. The marketing is confident. The claims sound compelling. And the research is, in fact, real.

The trouble is what happened between the research and the bottle.

The studies that put beetroot on the map were conducted on one specific form of the ingredient. The capsules on the shelf are usually a different form. And a Purdue University analysis cited by clinicians at Novant Health quantified exactly how different those two forms really are. The gap is larger than almost anyone taking a beetroot supplement realizes.

Where the beetroot research actually comes from

The excitement around beetroot and blood pressure is rooted in a body of work from the last fifteen years. Small trials showed that drinking high-nitrate beet juice could produce measurable, short-term reductions in heart rate and blood pressure in healthy adults, typically within one to six hours after consumption. Athletic performance research added another layer, showing modest improvements in endurance and oxygen efficiency at competitive intensity.

The mechanism is straightforward. Beets are unusually high in dietary nitrate. In the body, nitrate converts to nitrite, which then converts to nitric oxide. Nitric oxide is the signaling molecule that tells blood vessels to relax and widen, which is what allows blood to move through them more easily.

The research is legitimate. The science is legitimate. The supplement industry's response to that science is where the story gets complicated.

The nitrate problem, in specific numbers

Every piece of the beetroot research was conducted using either fresh beetroot or concentrated beet juice. That form matters, because nitrate content is where all the meaningful cardiovascular activity lives.

When supplement companies saw the positive headlines, they created beetroot powder in capsules. On the surface, it makes sense. A capsule is easier to take than a glass of dark red juice. It lasts longer on a shelf. It ships more cheaply. What no one put on the marketing copy is what drying and powdering beetroot does to nitrate content.

A Purdue University analysis cited in 2025 guidance from Novant Health is about as clear as this comparison gets. A single serving of beetroot juice can contain anywhere from 230 to 1,000 milligrams of nitrates, depending on the concentrate. By comparison, powdered beetroot supplements in capsule form were measured at only 5 to 10 milligrams of nitrates per capsule.¹

Reading a label will not surface this gap on its own. Most beetroot capsules list a milligram weight for the powder in the capsule, not the milligram weight of the active nitrates inside that powder. The label might read "1,000 mg Beetroot" and be technically accurate. That refers to the weight of the dried vegetable matter inside the capsule. It is not the weight of the compound the research was measuring.

If the numbers are right, a typical powdered beetroot capsule carries somewhere between one percent and four percent of the active nitrate content of a single serving of fresh beet juice. To match one glass of juice, a person would need to take somewhere between twenty-three and two hundred capsules in a day.

What the pharmacists are actually saying

This is not a fringe observation or a marketing argument. Credentialed clinicians have started addressing the gap directly in mainstream health media, and their language is more pointed than the marketing on any bottle.

Cydney McQueen, a clinical professor of pharmacy practice at the University of Missouri–Kansas City and a nationally recognized expert on dietary supplements, is even more direct in a 2024 piece for Fortune:

Her point is specifically about beetroot supplements. If the research was done on the juice and the whole vegetable, the product that carries the research is the juice and the whole vegetable. The capsule is something else.

The other thing the research does not say

There is a second layer to the beetroot story that almost never makes it into the marketing copy.

Most of the performance research on beet juice was done in elite athletes. Nationally ranked kayakers. Competitive cyclists. People whose baseline cardiovascular efficiency was already at an extremely high level, and for whom a small percentage improvement in oxygen usage could be the difference between finishing first and finishing fourth. The effect sizes in those studies are meaningful to that specific population. The question of whether they translate to a sixty-five-year-old whose goal is to support healthy blood pressure as part of daily life is a separate question.

McQueen put it clearly in the same Fortune piece: the subtle differences beet juice produces in athletes "may mean the difference between silver and gold at the Olympics." For anyone not operating at that level, the measurable effects in the broader blood pressure research tend to be short-lived, modest, and inconsistent across populations. One study of 85 adults found only slight blood pressure effects, and only in people under 65. Another found the effect only in men.²

None of this means beets are not a valuable food. They clearly are. The point is narrower than that. The cardiovascular research is not the blanket endorsement of beetroot supplementation that the marketing has turned it into.

Why one ingredient is rarely the whole answer

There is a separate issue with the beetroot-only approach that goes beyond nitrate content. The cardiovascular system is not governed by one nutrient or one pathway. Blood vessels have their own regulatory biology. The heart has its own. The nervous system has an independent role in how the vessels behave. Homocysteine metabolism, inflammation, vascular tone, and nitric oxide availability are each their own conversation in the research literature.

The idea that a single botanical ingredient, however good the research on it, resolves all of those pathways by itself is a significant simplification of how the body works. Most of the cardiovascular research that has held up over time is research on multiple ingredients working through multiple mechanisms at once.

ULTALIFE Blood Pressure Support was built by a founder who ran into this problem personally. In 2014, Jon Kendal was 43 when a routine eye exam turned into a blood pressure emergency. His eye doctor, after taking his blood pressure as part of the exam, asked to call an ambulance on the spot. Jon refused. Drove himself down to the Walgreens a few blocks away to verify the reading on the public machine. The number was real: 177 over 119. The ER physician he saw afterward wrote a prescription and told him he would be on blood pressure medication for the rest of his life.

Jon took the prescription. He also decided that he was not going to accept "for the rest of your life" as the only answer on offer. The next many months were spent working through every herb, plant, extract, vitamin, and botanical that showed up in the cardiovascular research. What he found is the pattern this article keeps returning to: the ingredients in most formulas were correct, but the amounts were a fraction of what the actual clinical work had used. He worked with a formulator to fix the doses. The formula that came out of that process is the one ULTALIFE has been manufacturing the same way for twelve years.

A short test for any cardiovascular supplement

The beetroot problem is a specific example of a broader problem in the category. The same three questions will help you read almost any blood pressure supplement label with clarity.

1. What form is the ingredient in?

Fresh juice, raw powder, standardized extract, and concentrate are not interchangeable. The research was done on one specific form. The supplement may be using a different one.

2. What is the label actually measuring?

A label that says "1,000 mg Beetroot" may mean 1,000 mg of dried plant matter. It rarely means 1,000 mg of the active compound the research was measuring. For nitrate-dependent ingredients like beetroot, a label that does not disclose nitrate content in milligrams is telling you something important by omission.

3. Is the formula built on one ingredient or a coordinated set of ingredients at meaningful doses?

Cardiovascular health is not a single-ingredient problem. A formula that addresses multiple pathways with research-informed amounts of each one is a different product category from a single-ingredient capsule betting everything on a trend.