Beetroot and Reduced Diastolic Blood Pressure

Research synthesisModerate evidenceSmall effect3 studies · 2 beneficial · 1 neutral · 0 harmful

Across 3 studies, 2 reported beneficial effects on diastolic blood pressure, with effect sizes ranging from small to moderate. One meta-analysis found a small but significant reduction per mmol increase in nitrate intake, while a smaller RCT observed a moderate reduction with beetroot juice. The evidence is based on a small number of studies with varied populations, including clinical and healthy adult groups.

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. One meta-analysis did not find significant effects in adults with obesity, suggesting response may vary by population. Study durations were not consistently reported, limiting assessment of long-term efficacy.

Generated Jul 9, 2026

Doses used in studies

Beetroot Juice · ml single-dose: 140 (median 140, IQR 140–140) — 1 study

3 of 3 papersPopulation:

Plasma nitrate, dietary nitrate, blood pressure, and vascular health biomarkers: a GRADE-Assessed systematic review and dose-response meta-analysis of randomized controlled trials.
- 2025-03-24
- Meta-Analysis · n = 1,823
- Nutrition journal 24(1)
- - Mostafa Norouzzadeh
  - Minoo Hasan Rashedi
  - Shadi Ghaemi
  - Niloufar Saber
  - Artemiss Mirdar Harijani
  - Hamzeh Habibi
  - Soroush Mostafavi
  - Fatemeh Sarv
  - Hossein Farhadnejad
  - Farshad Teymoori
  - Mohsen Khaleghian
  - Parvin Mirmiran
- PubMed: 40128734
- DOI: 10.1186/s12937-025-01114-8
5 Insights on
- Reduced Diastolic Blood Pressure
- High evidence
- Clinical
a decrease in diastolic BP for each mmol increase in NO3 intake (WMD: -0.12 mmHg; 95% CI: -0.21, -0.03) was shown.
Effect
Beneficial
Effect size
Small
Significant
Yes
Dose
per mmol increase in administered dose
The effect of dietary nitrate on weight management: a systematic review and meta-analysis.
- 2026-04-28
- Meta-Analysis · n = 199
- Frontiers in public health 14
- - Wenjun Cai
  - Peng Wei
  - Fan Yang
  - Lin Shu
  - Yongyao Du
  - Huirong Feng
  - Jiaojiao Shi
  - Chao Kang
  - Xiaoli Peng
- PubMed: 42130877
- DOI: 10.3389/fpubh.2026.1798811
6 Insights on
- Reduced Diastolic Blood Pressure
- High evidence
- Clinical
No significant effects of nitrate supplementation were observed on ... diastolic blood pressure (DBP)
Effect
Neutral
Effect size
Small
Significant
No
Inter-individual differences in the blood pressure lowering effects of dietary nitrate: a randomised double-blind placebo-controlled replicate crossover trial.
- 2025-02-24
- RCT
- European journal of nutrition 64(2)
- - Eleanor Hayes
  - Shatha Alhulaefi
  - Mario Siervo
  - Eleanor Whyte
  - Rachel Kimble
  - Jamie Matu
  - Alex Griffiths
  - Marc Sim
  - Mia Burleigh
  - Chris Easton
  - Lorenzo Lolli
  - Greg Atkinson
  - John C Mathers
  - Oliver M Shannon
- PubMed: 39992469
- DOI: 10.1007/s00394-025-03616-x
2 Insights on
- Reduced Diastolic Blood Pressure
- High evidence
- Rigorous Journal
- Adults
Nitrate-rich beetroot juice supplementation elevated plasma nitrate and nitrite concentrations and reduced systolic (mean:-7mmHg, 95%CI: -3 to -11mmHg) and diastolic (mean:-6mmHg, 95%CI: -2 to -9mmHg) BP versus placebo.
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
140 ml nitrate-rich beetroot juice (~14.0 mmol nitrate)

Beetroot and Reduced Diastolic Blood Pressure

Plasma nitrate, dietary nitrate, blood pressure, and vascular health biomarkers: a GRADE-Assessed systematic review and dose-response meta-analysis of randomized controlled trials.

The effect of dietary nitrate on weight management: a systematic review and meta-analysis.

Inter-individual differences in the blood pressure lowering effects of dietary nitrate: a randomised double-blind placebo-controlled replicate crossover trial.