Beet juice and juice: two separate literatures

Beetroot juice is studied as a sports supplement, and the findings are narrower than the marketing. A meta-analysis of 23 randomized trials in 401 healthy adults aged 18 to 40 pooled 21 of them, and the gain in time to peak power (SMD -0.92, 95% CI -1.29 to -0.54) comes from the four Wingate-based studies inside it. Handgrip strength rose slightly (SMD 0.40, 95% CI 0.05 to 0.74). It did nothing for countermovement jump, peak or mean power, 10 m or 20 m sprints, perceived exertion, heart rate or blood lactate. GRADE certainty was low for most of those outcomes and very low for the 20 m sprint and for blood lactate. The other half of this pair barely exists as evidence. An umbrella review of 15 systematic reviews of 100 percent juice found no eligible study of vegetable juice at all, and 38 of its 51 meta-analyses, 74.5 percent, reported no effect. Three of those 51, 5.9 percent, reported higher risk instead, one each for cardiovascular mortality, prostate cancer and type 2 diabetes. What the research literature calls juice is fruit juice, while beetroot juice lives a separate life as a nitrate supplement, so findings do not carry across in either direction.

How much is actually in it

• Observational data from 3338 United Kingdom adults link vegetable nitrate intake of 95 to 130 mg a day with lower systolic blood pressure, while nitrate from processed meat shows no such link. — 3338 adults aged 19 to 64, 59% female, mean age 43, National Diet and Nutrition Survey years 1 to 8 (n = 3338) Evidence C source
  Systolic and diastolic BP, waist circumference, waist-to-hip ratio and HbA1c lower in quartile 3 of vegetable nitrate (95 to 130 mg a day) than quartile 1 (3 to 65 mg a day), no benefit across quartiles of processed meat nitrate and higher systolic BP in its top quartile

What a real portion looks like

• In the USDA survey food table an unspecified serving of beet juice weighs 8.7 oz (248 g) and one fluid ounce weighs 1.1 oz (31 g) without ice. — USDA FNDDS survey food Beet juice, food code 73105000, WWEIA category Vegetable juice Evidence E source
  Quantity not specified 248 g, 1 fl oz without ice 31 g, 1 fl oz with ice 23 g

What your body absorbs

• By a meta-analysis of 15 randomized and controlled trials in 1381 females and children, including ascorbate-rich fruits in meals raised serum ferritin by 9.39 micrograms per liter in the 7 trials that reported it, but did not change measured iron absorption. — females aged 15 to 74 and children in 15 randomized and controlled trials, 806 in intervention arms and 575 controls, searched December 2024 and updated March 2026 (n = 1381 across the synthesis, 762 in the 7 trials behind the ferritin estimate) Evidence A source
  Serum ferritin MD 9.39 micrograms per liter (7 trials, moderate certainty), hemoglobin MD 1.34 g/L (12 trials), serum transferrin receptor MD -0.37 mg/L, no effect on iron absorption (MD 3.36%, low certainty)

What cooking and storage change

• A systematic review of 20 human trials of red beetroot products found conflicting effects on blood sugar, which the authors attributed to differences in product form, dose and duration. — humans with type 2 diabetes, obesity, hypertension and other conditions in 18 randomized trials, one non-randomized trial and one quasi-experimental study published between 2000 and 2022 (n = 20 studies) Evidence A source
  Conflicting glycemic results across studies, no pooled estimate reported

What it does to your health

• By a meta-analysis of 23 randomized trials in 401 healthy adults, beetroot juice shortened time to peak power in the four Wingate-based studies inside it, with a standardized mean difference of 0.92, and did not improve 10 m or 20 m sprint performance. — healthy adults aged 18 to 40 in 23 randomized trials published between 2014 and June 2026, 21 trials pooled (n = 401) Evidence A source
  Time to peak power SMD -0.92 (95% CI -1.29 to -0.54), handgrip strength SMD 0.40 (95% CI 0.05 to 0.74), no effect on countermovement jump, peak or mean power, 10 m or 20 m sprint, perceived exertion, heart rate or blood lactate
• By a meta-analysis of 7 studies in 360 untrained adults, beetroot juice lowered oxidative damage biomarkers with a standardized mean difference of 0.42 and raised total antioxidant capacity with a standardized mean difference of 0.82. — non-athletic adults in 7 experimental studies comparing beetroot juice with placebo (n = 360) Evidence B source
  Oxidative damage biomarkers SMD -0.42 (95% CI -0.75 to -0.09, I2 55%), total antioxidant capacity SMD 0.82 (95% CI 0.36 to 1.27, I2 81%)
• By a meta-analysis of 8 randomized trials in 199 adults with obesity, dietary nitrate changed neither body weight nor body mass index nor diastolic blood pressure. — adults with overweight or obesity in 8 randomized trials published between 2014 and 2023 in five countries, nitrate given mainly as beetroot juice (n = 199) Evidence A source
  No effect on body weight, BMI or diastolic blood pressure, systolic blood pressure SMD -0.32 (95% CI -0.63 to -0.01), total cholesterol SMD -0.59, triglycerides SMD -0.45

Safety, limits and interactions

• By a meta-analysis of 51 pharmacokinetic studies, grapefruit juice cut the exposure to aliskiren and celiprolol by about 80 to 90 percent. — humans in 51 studies of fruit juice and antihypertensive drug pharmacokinetics, mostly open-label crossover trials, searched to June 2024 (n = 51 studies) Evidence A source
  AUC and Cmax of aliskiren and celiprolol down by about 80 to 90 percent with grapefruit juice, variable decreases for calcium channel blockers, comparable effects for apple and orange juice on some drugs

What people believe that the data does not support

• The EU register records the claim that lactic acid fermented red beet juice supports a healthy digestion as non-authorized, and no claim about beet juice is authorized. — EU Register on nutrition and health claims, snapshot 2026-09-21, four claims filed for beet juice and none authorized, 61 claims filed for juice and none authorized Evidence E source
  Status Non-authorized

Who this works differently for

• By a meta-analysis of 6 randomized trials in 181 adults over 50, at least a week of sodium nitrate supplementation lowered neither systolic nor diastolic blood pressure, and trials using beetroot juice were excluded from it. — adults aged 18 and over, 59% male, mostly over 50 years, placebo-controlled trials lasting at least one week, searched June 2025 (n = 181) Evidence A source
  Systolic BP MD -3.81 mmHg (95% CI -10.05 to 2.43), diastolic BP MD -2.00 mmHg (95% CI -4.37 to 0.38), resting heart rate MD 0.34 bpm (95% CI -5.68 to 6.36)
• By an individual participant meta-analysis of 4 trials in 85 people aged 55 to 76, beetroot juice cut nocturnal systolic blood pressure variability by 2.8 mmHg in those under 65 and did nothing in those 65 and over. — 85 older participants aged 55 to 76 from four randomized trials, two open-label parallel and two double-blind crossover, 24-hour ambulatory blood pressure monitoring (n = 85) Evidence A source
  Nocturnal systolic BP variability -2.8 mmHg (-4.5 to -1.0) under 65 years against 1.0 mmHg (-2.2 to 4.2) at 65 and over, pooled effect on all blood pressure outcomes not significant

What is still unknown

• An umbrella review of 15 systematic reviews of 100% juice found no eligible study of vegetable juice at all, and 74.5% of its 51 meta-analyses reported no effect. — 15 systematic reviews with 51 primary meta-analyses, 6 dose-response analyses and 87 subanalyses, doses of 3.4 to 41 tbsp (50 to 1200 mL) a day, durations from hours to years (n = 51 meta-analyses) Evidence A source
  10 meta-analyses (19.6%) reported benefits, 3 (5.9%) reported adverse risks, 38 (74.5%) reported no effect, and no eligible vegetable juice study was found

The bottom line

If you are drinking it for blood pressure, the details decide the answer. In 8 randomized trials in 199 adults with overweight or obesity, dietary nitrate given mostly as beetroot juice left body weight, BMI and diastolic pressure unchanged. Systolic pressure moved a little (SMD -0.32, 95% CI -0.63 to -0.01), and the reviewers found publication bias for BMI and diastolic pressure. A separate meta-analysis of 6 trials in 181 adults, mostly over 50, found that at least a week of sodium nitrate lowered neither systolic pressure (-3.81 mmHg, 95% CI -10.05 to 2.43) nor diastolic pressure. That review deliberately excluded beetroot juice trials, so it marks the limit of what can be said about isolated nitrate rather than refuting the juice. Age may matter. An individual participant analysis of 4 trials in 85 people aged 55 to 76 found beetroot juice cut nocturnal systolic pressure variability by 2.8 mmHg in those under 65 and by nothing at 65 and over. The pooled effect on every blood pressure outcome in that same analysis was not significant, so 85 people split by age is a question rather than a threshold. Outside trials, a cross-sectional survey of 3338 UK adults aged 19 to 64 found systolic pressure, waist measures and HbA1c lower in the third quartile of vegetable nitrate intake, 95 to 130 mg a day, than in the lowest quartile. Nitrate from processed meat showed no such pattern in the same people. Cross-sectional data cannot show cause, and a high vegetable nitrate quartile probably marks a vegetable-heavy diet. The biggest hole on this page is the label. A serving of beet juice weighs 8.7 oz (248 g) in the USDA survey table, about a glass, and none of our reference layers records how much nitrate is in that glass, which is the thing doing the work. A systematic review of 20 human trials of red beetroot products found conflicting effects on blood sugar and put that down to differences in product form, dose and duration, with juice, powder and baked root all counted as beetroot. For caution, this page has one card and it is about juice as a class. A meta-analysis of 51 pharmacokinetic studies found grapefruit juice cut exposure to aliskiren and celiprolol by roughly 80 to 90 percent, with apple and orange juice comparable for some drugs. Beetroot juice has never been tested that way, so if you take a blood pressure drug, read that silence as untested rather than safe. One absorption note belongs to the fruit side, and it is about fruit, not juice. Across 15 randomized and controlled trials in 1381 females and children, including ascorbate-rich fruits in meals raised serum ferritin by 9.39 micrograms per liter in the 7 trials that measured it, 762 people, while measured iron absorption did not change. What was fed in those trials was fruit, so none of it transfers to a glass. Labels may promise nothing here. The EU register holds four claims filed for beet juice and 61 for juice, and not one of the 65 is authorized.

Sources

1. bjvj-daily-r5-10 · cross-sectional analysis of a national survey
   Across increasing quartiles of vegetable nitrate intake, systolic BP (SBP), diastolic BP, waist circumference, waist-to-hip ratio, and glycated hemoglobin were lower in Q3 (95‒130 mg/d nitrate) than in Q1 (3‒65 mg/d) (P ≤ 0.038). ... In contrast, there was no difference in CVD risk biomarkers across quartiles of nitrate intake from processed meats, with higher SBP in Q4 (1.8‒3 mg/d nitrate) than Q1 (0.1‒0.8 mg/d) (P = 0.010).
   J Nutr, 2026 · checked 2026-09-25
2. bjvj-daily-r5-12 · reference dataset
   Beet juice | FNDDS code 73105000 | fdc_id 2709682 | Quantity not specified 90000 = 248 g | 1 fl oz (no ice) 30001 = 31 g | 1 fl oz (with ice) 30009 = 23 g
   USDA FNDDS, Beet juice, food code 73105000, fdc_id 2709682 · checked 2026-09-25
3. bjvj-daily-r5-08 · systematic review and meta-analysis of interventions
   Including ascorbate-rich fruits in meals had a positive impact on serum ferritin [7 trials, n = 762; mean difference (MD) = 9.39 μg/L; P < 0.001; moderate certainty], hemoglobin (12 trials, n = 1141; MD = 1.34 g/L; P = 0.01; moderate certainty), serum transferrin receptor (6 studies; MD = -0.37 mg/L; P < 0.001; high certainty), and iron balance (1 trial; MD = 2.4; low certainty).
   Am J Clin Nutr, 2026 · checked 2026-09-25
4. bjvj-daily-r5-09 · systematic review
   This systematic review included 18 randomized controlled trials (RCTs), one non-randomized clinical trial (non-RCT), and one quasi-experimental (QE) study, and they covered different health conditions, e.g., type-2 diabetes mellitus (T2DM), obesity, hypertension, etc. The studies produced conflicting results, likely due to differences in the study design, dosage, duration, and population.
   Curr Nutr Rep, 2024 · checked 2026-09-25
5. bjvj-daily-r5-01 · systematic review and meta-analysis of RCTs
   Twenty-three randomized trials involving 401 participants were included, and 21 contributed to the meta-analysis. BRJ improved time to peak power in four Wingate-based studies (SMD = -0.92, 95% CI: -1.29 to -0.54, p < 0.001) and handgrip strength (SMD = 0.40, 95% CI: 0.05 to 0.74, p = 0.027).
   Nutrients, 2026 · checked 2026-09-25
6. bjvj-daily-r5-02 · systematic review and meta-analysis
   Seven studies (n = 360) met inclusion criteria. BRJ significantly reduced oxidative damage biomarkers (SMD = -0.42; 95% CI: -0.75 to -0.09; p = 0.01) with moderate heterogeneity (I2 = 55%), particularly improving the GSH/GSSG ratio.
   Nutr Health, 2026 · checked 2026-09-25
7. bjvj-daily-r5-04 · systematic review and meta-analysis of RCTs
   Eight RCTs involving 199 participants were included in the meta-analysis. No significant effects of nitrate supplementation were observed on body weight, BMI, or diastolic blood pressure (DBP).
   Front Public Health, 2026 · checked 2026-09-25
8. bjvj-daily-r5-07 · systematic review and meta-analysis
   Grapefruit juice (GFJ), an inhibitor of organic-anion-transporting polypeptide (OATP) transporters and cytochrome P450 (CYP) 3A4, significantly decreased the AUC and Cmax of aliskiren and celiprolol by approximately 80-90 %.
   Complement Ther Med, 2025 · checked 2026-09-25
9. bjvj-daily-r5-11 · regulatory register entry
   POL-HC-6695 Beta vulgaris (red beet juice, lactic acid fermented) Supports a healthy digestion Non-authorised
   EU Register on nutrition and health claims, claim POL-HC-6695, snapshot 2026-09-21 · checked 2026-09-25
10. bjvj-daily-r5-03 · systematic review and meta-analysis of RCTs
    Studies with beetroot juice as an intervention and studies with animals were excluded. ... Compared to the placebo condition, NO₃⁻ supplementation did not result in significant reductions in DBP (MD: -2.00 mm Hg; 95% CI: -4.37 to 0.38 mm Hg); SBP (MD: -3.81 mm Hg; 95% CI: -10.05 to 2.43 mm Hg); and RHR (MD: 0.34 bpm; 95% CI: -5.68 to 6.36 bpm).
    Nutr Res, 2026 · checked 2026-09-25
11. bjvj-daily-r5-05 · individual participant meta-analysis
    The pooled effect of beetroot juice on all BP outcomes was not significant. Beetroot juice ingestion determined a significant decrease in nocturnal systolic BP variability in subjects aged less than 65 y (2.8 mmHg, -4.5 -1.0, p = 0.002) compared to the older group (≥ 65 y; 1.0 mmHg, -2.2 4.2, p = 0.54).
    Nitric Oxide, 2015 · checked 2026-09-25
12. bjvj-daily-r5-06 · umbrella review
    No eligible studies for vegetable juice were found. Fifteen systematic literature reviews (51 primary MAs, 6 dose-response, and 87 subanalyses; 50-1200 mL/day; hours to years of duration) were included. Ten MAs (19.6%) reported health benefits (4 for blood pressure, 2 for vascular function, 3 for inflammation, 1 for stroke mortality), 3 MAs (5.9%) reported adverse risks (1 each for cardiovascular disease mortality, prostate cancer, type 2 diabetes risk), while most (74.5%) reported no effect (blood lipids, body composition, liver function, metabolic health, cancers, and inflammation).
    Nutr Rev, 2025 · checked 2026-09-25