Trial reportMolecular nutrition & food research2025
Increased Nitrate Intake From Beetroot Juice Over 4 Weeks Changes the Composition of the Oral, But Not the Intestinal Microbiome.
Trial report in Molecular nutrition & food research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Increased Nitrate Intake From Beetroot Juice Over 4 Weeks Changes the Composition of the Oral, But Not the Intestinal Microbiome.Molecular nutrition & food research · 2025Trial
- Influence of exercise training on nitric oxide pathways and their physiological effects.Redox biology · 2026Review
- Beetroot Juice and Exercise for Clinical Health and Athletic Performance: A Narrative Review.Nutrients · 2026Review
- Can Beetroot (Nutrients · 2025Review
- Oral microbiota in cardiovascular health and disease.Frontiers in cellular and infection microbiology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
Inorganic dietary nitrate, metabolized through an endogenous pathway involving nitrate reducing bacteria, improves cardiovascular health, but its effects on the oral and intestinal microbiomes of older adults with treated hypertension are unknown. Our study investigated the effects of nitrate from beetroot juice on the oral and intestinal microbiomes of this population. A randomized, double-blind, placebo-controlled crossover trial was conducted with 15 participants (age range: 56-71 years), who consumed nitrate-rich or nitrate-depleted (placebo) beetroot juice for 4 weeks. The oral microbiome analysis revealed an increase in Neisseria and a decrease in Veillonella relative abundance (for both, PERMANOVA p < 0.001), with no significant changes in the intestinal microbiome composition. Our findings suggest that an increased dietary nitrate intake from a vegetable source may selectively modulate the oral microbiome and promote an increased abundance of nitrate-reducing species, which was previously associated with improved cardiovascular health outcomes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.