Back to database
4/5 Good evidence

Endurance evidence brief

Dietary nitrate / beetroot

Modest performance and muscle-power benefits, especially in less elite endurance populations.

Good but context dependent endurance 7 linked sources Content audit 2026-05-04

Headline Finding

Meta-analyses: strength SMD 0.08, endurance SMD 0.31; acute power ES 0.54.

Dose Context

Use standardized nitrate content rather than vague beet powder blends.

Important Caveat

Effects vary by fitness level, test type, sex representation, and dosing protocol. Mouthwash can interfere.

Source Drawer

Linked Research

7 papers and evidence links - audit 2026-05-04
  1. Meta-analysis Muscular performance meta-analysis
  2. Meta-analysis Muscle power IPD meta-analysis
  3. Meta-analysis Food-source nitrate meta-analysis
  4. Meta-analysis Endurance/cardiorespiratory meta-analysis
  5. Meta-analysis Training responses meta-analysis
  6. Meta-analysis Nitrate performance meta-analysis
  7. Meta-analysis Exercise performance umbrella review

Product recommendation

Evidence-Matched Product Links

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases.

These links are only shown when we believe the product is genuinely useful for the stated claim and matches the evidence use case. Check the current Amazon label for dose, form, allergens, third-party testing, and seller details before buying. A product being available commercially does not change the evidence rating.

How To Read This Rating

The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.

Spot An Evidence Issue?

Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.

Report a source or rating issue