Supplement evidence

031 / 575Performance

Beetroot / nitrate

View my plan →

The short answer

Improving exercise economy or aerobic performance in some recreationally active adults.

Evidence and scope: Conditional or population-specific
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: Results vary in highly trained athletes and do not establish longer life.
Before deciding: Can lower blood pressure and interact with nitrate or blood-pressure medicines.

01 / PRACTICAL GUIDE

Dose, absorption, and combinations

These are indication-specific reference or studied ranges—not a personalized prescription. Start with the objective, then check the form, label, medicines, and health conditions.

Reference range by objective

Endurance exerciseAbout 5–9 mmol nitrate 2–3 hours before exercise

Reference or studied range—not a personalized prescription. The product label or a clinician may specify a different dose.

Dose source ↗

More is not automatically better. A clinician or product label may specify a different amount.

Absorption / solubilityWater-soluble

Water-soluble or readily water-dispersible. This does not mean excess is always harmless.

How it is commonly taken

Avoid antibacterial mouthwash around dosing because oral bacteria help nitrate conversion.

Do not combine casually

Blood-pressure medicines, hypotension, kidney disease, and high-oxalate products require review.

Dose and use source ↗

Dose and use links lead to primary or official source material. Search links are discovery tools, not proof that every returned paper applies.

02 / EVIDENCE

What the research says

We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.

4research papers in this ledger

134unique primary studies represented

2,054unique participants represented

These are audited counts for this JIVANA collection, not search-result totals. Participants are counted once when multiple papers use the same cohort; review papers are not added again to participant totals.

Open the research timelineResearch timeline

Entries are ordered by publication year. A study period appears only when the source reports it.

2024

Mixed or qualifiedPMID 39069465

Effects of beetroot juice on blood pressure in hypertension according to European Society of Hypertension Guidelines

Clinic systolic pressure fell by about 5.3 mmHg, but diastolic and 24-hour measures did not clearly improve. Certainty was low and heterogeneity was moderate to high.

Published: 2024n=349 participants11 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 11 randomized trials
Population: 349 adults with clinical hypertension
Intervention: Nitrate-rich beetroot juice providing 200–800 mg nitrate/day versus placebo, water, or no intake
Outcome: Clinic, diastolic, and 24-hour blood pressure

Funding or conflict note: The authors declared no competing interests.

Open research record ↗

2022

Mixed or qualifiedPMID 35580578

Factors that Moderate the Effect of Nitrate Ingestion on Exercise Performance in Adults

The pooled performance effect was statistically significant but very small. Effects were more apparent with beetroot or high-nitrate foods, during 2–10 minute efforts, and under specific timing and dose conditions.

Published: 2022n=1,705 participants123 primary studies represented

Study design and methods

Design: Systematic review, meta-analysis, and meta-regression of 123 randomized studies
Population: 1,705 healthy adults in exercise-performance trials
Intervention: Inorganic nitrate from beetroot juice, nitrate salts, or high-nitrate diets versus placebo
Outcome: Exercise performance and moderators

Open research record ↗

2022

Does not support the tested claimPMID 35352014

No effect of nitrate-rich beetroot juice on microvascular function and blood pressure in younger and older individuals

Despite increased urinary nitrate, a single dose did not improve blood pressure or microvascular function in either age group; no adverse events were reported.

Published: 2022Duration: Single-dose crossover with measurements to 24 hoursn=25 participants

Study design and methods

Design: Randomized, double-blind, placebo-controlled crossover pilot study
Population: 25 younger (18–35) and older (55+) adults
Intervention: One dose of beetroot juice providing 6.4 mmol nitrate or nitrate-depleted juice
Outcome: Blood pressure and microvascular endothelial function

Funding or conflict note: The authors declared no competing interests. This short pilot is excluded from aggregate totals to keep the broad synthesis primary.

Open research record ↗

2015

Supports a specific usePMID 25421976 · NCT01405898

Dietary nitrate provides sustained blood pressure lowering in hypertensive patients

Blood pressure fell across all three measurement settings over four weeks and the intervention was well tolerated. This small phase 2 result is represented in the later hypertension meta-analysis.

Published: 2015Duration: 4 weeks after a 2-week run-inn=68 participants

Study design and methods

Design: Randomized, phase 2, double-blind, placebo-controlled trial
Population: 68 treated or untreated adults with hypertension
Intervention: Nitrate-rich beetroot juice 250 mL/day or nitrate-depleted beetroot juice
Outcome: Clinic, ambulatory, and home blood pressure; endothelial function and arterial stiffness

Funding or conflict note: Funded by the British Heart Foundation; excluded from totals because it is represented in the 2024 hypertension meta-analysis.

Open research record ↗

Unscreened discovery appendix—not evidence529 candidate publicationsSearch run: Aug 21, 2026

Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.

03 / SOURCES

Start with the source material

Official evidence overviewNIH Office of Dietary Supplements Live PubMed discovery searchNational Library of Medicine

The live search is for discovery only. Search-result counts change and are not included in the audited totals above.

Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.

04 / EXPERT CONTEXT

Expert context—not evidence

Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.

No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.