Beets contain a modest amount of iron alongside nutrients that support iron absorption, and several small clinical studies have found that regular beetroot juice consumption can raise hemoglobin and serum iron levels in people with anemia. That said, beets are not an iron powerhouse on their own. Their real value for iron deficiency likely comes from a combination of the iron they do provide, their vitamin C content that aids absorption, and their folate, which plays its own role in healthy red blood cell production. The picture is more interesting than a simple yes or no.
How Much Iron Is Actually in a Beet
A medium-sized raw beet (about 80-100 grams) delivers roughly 0.8 mg of iron. That is not a lot when you consider that adult women need about 18 mg per day and men need about 8 mg. Compared to a serving of spinach, lentils, or red meat, beets look fairly unimpressive on paper. And the iron in beets is non-heme iron, the plant-based form that your body absorbs less efficiently than the heme iron found in animal products.
Beetroot powder tells a somewhat different story. When dried and concentrated, beetroot powder can supply between about 9 and 10 mg of iron per 100 grams, which represents more than half the recommended daily allowance for adolescent girls. Research on beetroot powder processed under different conditions also found that the oxalate-to-iron ratio remained below 1.0, which is a favorable sign for absorption since oxalates can otherwise block iron uptake.1Journal of Food Innovation, Nutrition, and Environmental Sciences. Bioavailability, Acceptability and Contribution of Beetroot Powder Processed Under Different Conditions to The Iron Intake of Adolescent Girls Aged 10 To 19 Years So the concentrated form packs a much bigger punch than a glass of fresh juice.
It Is Not Just About the Iron
If beets only offered their relatively small dose of iron, they would not generate as much interest as they do. What makes beets potentially useful for iron deficiency is the supporting cast of nutrients that come along for the ride. Beets are a meaningful source of folate, vitamin C, and a range of bioactive compounds including betalains (the pigments that give beets their deep red color) and dietary nitrates.
Folate matters here because folate deficiency on its own can cause a type of anemia, megaloblastic anemia, where red blood cells grow abnormally large and cannot function properly. Beets are recognized as a rich source of folates, and a review of beetroot’s role in folic acid deficiency noted that the vegetable’s combination of folates, minerals, and bioactive compounds makes it relevant to maternal health and anemia prevention.2PubMed Central. Ameliorative Effect of Beetroot Against Folic Acid Deficiency: A Review The vitamin C in beets also helps convert non-heme iron into a form that the gut absorbs more readily. So when you drink beetroot juice, you are getting a small iron dose delivered alongside the very nutrients that help your body use it.
What the Clinical Studies Show
A handful of small clinical trials have directly tested whether beetroot juice raises iron-related blood markers in people with anemia, and the results have been consistently positive, if limited in scale.
A study evaluating beetroot juice in nursing students with iron deficiency anemia found a significant improvement in serum iron levels in the group drinking beet juice compared to controls.3INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH. A STUDY TO ASSESS EFFECTIVENESS OF BEETROOT JUICE ON SERUM IRON AMONG NURSING STUDENTS WITH IRON DEFICIENCY ANEMIA IN SELECTED COLLEGE OF JALANDHAR CANTT In a study conducted in Iraq, non-pregnant anemic patients who supplemented with beetroot juice saw their hemoglobin levels rise from an average of about 10.3 g/dL to about 11.2 g/dL, a statistically significant increase.4Indonesian Journal on Health Science and Medicine. The Impact of Beetroot Juice Supplementation on Hemoglobin Levels in Patients Diagnosed with Anemia For context, normal hemoglobin for women is generally considered 12 g/dL or above, so moving from 10.3 to 11.2 is a meaningful bump even though it does not fully close the gap.
These trials share a common limitation: they are small, and most lack the large sample sizes or rigorous blinding that would make their conclusions definitive. The direction of the evidence is encouraging, but nobody has yet conducted the kind of large randomized trial that would settle the question for good. What researchers have described these findings as is “one of the first structured evaluations” of beetroot juice for anemia, which is an honest signal that the evidence base is still young.
Beets During Pregnancy
Iron deficiency anemia is extremely common during pregnancy because blood volume expands dramatically and the growing baby draws on the mother’s iron stores. Several studies have specifically looked at whether beetroot juice helps pregnant women raise their hemoglobin levels, and this is where some of the most interesting data comes from.
In a study of 34 pregnant women with anemia, hemoglobin levels rose from a median of about 9.75 g/dL before consuming beetroot juice to about 10.7 g/dL afterward, a statistically significant improvement.5International Journal of Medical Science and Clinical Research Studies. Effectivity of Beetroot in Increasing Pregnant Women Hemoglobin Another study in third-trimester pregnant women found that those given beetroot juice saw hemoglobin levels climb from an average of about 10.5 g/dL to about 11.7 g/dL, with the intervention group performing significantly better than the control group.6Jurnal Maternitas Aisyah (JAMAN AISYAH). EFFECT OF BEETROOT JUICE ON THE INCREASE IN HEMOGLOBIN LEVELS AMONG PREGNANT WOMEN AT KEMILING INPATIENT COMMUNITY HEALTH CENTER IN 2022 A third study at Budhi Asih Hospital similarly reported that beetroot juice was effective at increasing hemoglobin levels in third-trimester pregnant women.7International Journal of Health and Pharmaceutical. The Effectiveness Of Giving Beet Juice On Hb Levels In Third Trimester Pregnant Women At Budhi Asih Hospital In 2022
The Iraqi study mentioned earlier, however, found a more ambiguous result in pregnant women specifically: hemoglobin levels did rise, but the change was not statistically significant in that subgroup.4Indonesian Journal on Health Science and Medicine. The Impact of Beetroot Juice Supplementation on Hemoglobin Levels in Patients Diagnosed with Anemia So while the overall trend looks positive, the evidence is not unanimously strong for pregnant women. None of these studies should be taken as a reason to skip prescribed iron supplements during pregnancy. They suggest that beetroot juice could be a useful dietary addition alongside whatever your doctor recommends, not a replacement for it.
Athletes and Iron Stores
Beetroot juice has been popular in sports nutrition for years, mostly because of its nitrate content and the effects that has on exercise performance and oxygen delivery to muscles. But a less-discussed benefit involves iron status. Female athletes in particular are at elevated risk for iron deficiency because of menstrual losses combined with the physical demands of training, and a phenomenon sometimes called “sports anemia” can cause drops in red blood cell markers.
A six-week trial in female soccer players found that those drinking beetroot juice experienced significant increases in hemoglobin, hematocrit, red blood cell count, serum iron, and ferritin levels. Ferritin is a protein that reflects how much iron your body has stored away, so improvements there suggest the benefits go beyond a temporary bump in circulating iron. The same study also found a significant decrease in total iron-binding capacity, which tends to drop when iron stores improve because the body no longer needs to ramp up its iron-grabbing mechanisms as aggressively.8Journal of Kermanshah University of Medical Sciences. The Effects of Consuming 6 Weeks of Beetroot Juice (Beta vulgaris L.) on Hematological Parameters in Female Soccer Players
This is one of the more complete pictures available in the research, because it tracked multiple iron-related markers rather than just hemoglobin alone. The improvement in ferritin is particularly meaningful: many people can have borderline hemoglobin levels but depleted iron stores, a situation that will eventually progress to full-blown anemia. Catching it at the ferritin stage matters.
How You Prepare Beets Changes What You Get
One of the more practically useful findings in the recent research involves what happens to beet iron during processing. If you are juicing beets, you might assume you are getting everything the beet has to offer. You are not.
A study that tracked iron levels across different preparation methods found that juicing beets and discarding the pulp caused a roughly 69% reduction in iron compared to consuming both the juice and the residue together. Even keeping the residue, thermal processing caused additional losses: pressure cooking reduced iron by about 40%, steaming by about 34%, and open-pan cooking by about 30%. The combination of juice and residue retained the most iron at around 2.3 mg per 100 grams on a dry weight basis.9PubMed Central. Processing-induced modulation of nutraceutical and anti-nutritional profiles of beetroot variants targeting enhanced iron retention
The practical takeaway is simple: if your goal is maximizing iron intake from beets, do not throw away the pulp. Blending whole beets into a smoothie or eating roasted beets rather than drinking strained juice preserves far more of the iron. If you are using beetroot powder, the drying and concentration process works in your favor, producing a form that delivers meaningfully more iron per serving than fresh juice alone.
Why Beets Are Not a Standalone Fix
Even the researchers behind positive beetroot-and-iron studies recommend larger trials and describe beetroot juice as a dietary supplement for managing anemia rather than a treatment. There are good reasons for this caution. True iron deficiency anemia is a medical condition with well-established treatments, including iron supplements that deliver 30 to 65 mg of elemental iron per tablet. A glass of beetroot juice, even a generous one, provides a fraction of that. When your body’s iron stores are genuinely depleted, the math simply does not work out if beets are your only strategy.
Where beets fit more sensibly is as part of a broader dietary approach, especially for people who are iron-deficient but not yet anemic, who cannot tolerate iron supplements well (gastrointestinal side effects are extremely common), or who want to support their iron intake through food alongside supplementation. Pairing beet dishes with other iron-rich plant foods like lentils, chickpeas, or fortified cereals, and including a source of vitamin C at the same meal, creates a more effective iron-boosting plate than any single food alone.
Things to Watch For
Beets are safe for most people, but there are a few quirks worth knowing about. The most visible one is beeturia: after eating beets, your urine or stool may turn pink or reddish. This is harmless and caused by betalain pigments passing through your system. It can look alarming if you are not expecting it, and it has sent more than a few people to the doctor thinking something is wrong.
Beets are moderately high in oxalates, which are compounds that can contribute to kidney stone formation in susceptible people. If you have a history of calcium oxalate kidney stones, loading up on daily beetroot juice may not be the best idea without discussing it with your doctor. The oxalate concern also matters for iron absorption in theory, since oxalates can bind to iron and reduce uptake. However, as noted earlier, research on beetroot powder found the oxalate-to-iron ratio remained in a favorable range, suggesting this is less of a barrier than it might be with higher-oxalate foods.1Journal of Food Innovation, Nutrition, and Environmental Sciences. Bioavailability, Acceptability and Contribution of Beetroot Powder Processed Under Different Conditions to The Iron Intake of Adolescent Girls Aged 10 To 19 Years
Beets also contain natural sugars at levels that can be relevant for people watching their carbohydrate intake, and research has shown that sugar content varies depending on how the beets are grown.10PubMed Central. Conventional, organic, and regenerative organic farming differentially shape nutritional and phytochemical profile in beetroot (Beta vulgaris) and its commercial powder products A single beet is not going to cause problems, but people with diabetes who start drinking large quantities of beetroot juice daily should be aware of the sugar load, particularly in commercial beet juices that may contain added sweeteners.
The Nitrate Bonus
Most of the popular press coverage of beetroot focuses on dietary nitrates and their cardiovascular and exercise-performance benefits, and this angle is worth touching on even though it is tangential to iron deficiency. When you drink beetroot juice, bacteria in your mouth convert the nitrates into nitrite, which eventually becomes nitric oxide in your bloodstream. Nitric oxide relaxes blood vessels, lowers blood pressure, and improves oxygen delivery to tissues.
A study on exercise tolerance found that beetroot juice supplementation improved time to exhaustion during exercise performed under low-oxygen conditions, and this improvement was linked to better muscle oxygenation. The effect was most pronounced when skeletal muscle was under greater oxygen stress.11PubMed Central. Influence of muscle oxygenation and nitrate-rich beetroot juice supplementation on O(2) uptake kinetics and exercise tolerance For someone dealing with iron deficiency, where oxygen transport is already compromised because you have fewer functional red blood cells, improved oxygen delivery at the tissue level could theoretically provide some relief from the fatigue and exercise intolerance that make iron deficiency so miserable day to day. No study has tested this interaction directly, but it is an interesting overlap between two of beet’s best-studied properties.
This nitrate pathway is also why beetroot juice has become a go-to supplement among endurance athletes, the same population that, as discussed earlier, showed improvements in iron markers after six weeks of supplementation. Whether the athletes in those studies felt better because of the iron improvements, the nitrate-driven oxygen delivery, or both, is impossible to untangle from the existing data. But it does make beets one of the rare foods that could address iron-deficiency fatigue through two distinct mechanisms simultaneously.