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Increased Nitrate Intake From Beetroot Juice Over 4 Weeks Changes the Composition of the Oral, But Not the Intestinal Microbiome
Molecular Nutrition & Food Research
2025
69(20):e70156
Bibliography
- PubMed
- PMID 40522148
- PubMed Central
- PMC12538535
- Funding
- Austrian Science Fund (FWF) Clinical Research (KLIF), project KLI 858 awarded to Oliver Neubauer; open-access funding through University of Vienna/KEMO.
- Competing interests
- Authors declare no conflicts of interest (Wiley article).
Study snapshot
| Design | Randomized double-blind placebo-controlled crossover trial |
|---|---|
| Model | 15 adults aged 56–71 with treated hypertension; clinical cohort overlaps Fejes 2024 |
| Sample | 15 older adults with treated hypertension; overlaps Fejes 2024 clinical cohort |
| Intervention | Four weeks nitrate-rich versus nitrate-depleted beetroot juice |
| Duration | Four weeks of nitrate-rich versus nitrate-depleted beetroot juice per crossover condition |
| Endpoints | Oral and intestinal microbiome composition |
What the study showed, in plain terms
Key findings
What this study can and cannot tell us
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