Evidence map›Paper›PMID 41286967›Full record

ArticleNutrition journal2025

The association between dietary intakes of nitrate with nitrite from animal and plant food sources and the incidence of metabolic syndrome: a prospective study.

Milad Davarpanah, Zahra Bahadoran, Mitra Hasheminia, Fatemeh Norouzi Rostami, Maryam Javadi, Parvin Mirmiran, Fereidoun Azizi

Abstract read
In one paragraph

Article in Nutrition journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Milad Davarpanah1Micronutrient Research Center, Research Institute for Endocrine Disorders, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, No 23, A'rabi St, Yeman Av, Velenjak, Tehran, Iran.
Zahra Bahadoran1Micronutrient Research Center, Research Institute for Endocrine Disorders, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, No 23, A'rabi St, Yeman Av, Velenjak, Tehran, Iran. z.bahadoran@sbmu.ac.ir.ORCID http://orcid.org/0000-0002-5138-0045
Mitra Hasheminia1Micronutrient Research Center, Research Institute for Endocrine Disorders, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, No 23, A'rabi St, Yeman Av, Velenjak, Tehran, Iran.
Fatemeh Norouzi RostamiDepartment of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
Maryam JavadiChildren Growth Research Center, Research Institute for Prevention of Non- Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. mz_javadi46@yahoo.com.
Parvin MirmiranNutrition and Endocrine Research Center, Research Institute for Endocrine Disorders, Research Institute for Endocrine Sciences, Shahid Beheshti, Tehran, Iran.
Fereidoun AziziEndocrine Research Center, Research Institute for Endocrine Disorders, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimIn the current study the potential effect of dietary nitrate (NO3)/nitrite (NO2) on the incidence of metabolic syndrome (MetS) was investigated.

methodsTotal of 1911 men and women (mean age of 37.5 ± 12.8 and 58.9% women), participated in the third (2006–2008) examinations of the Tehran Lipid and Glucose Study (TLGS), were included and followed up to 2018–2022. A semi-quantitative food frequency questionnaire was used at baseline to estimate dietary intakes of NO3 and NO2. Multivariable-adjusted Cox proportional hazard models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) of incidence of MetS across quartile categories of NO3 and NO2 dietary intakes.

resultsMean (SD) daily intake of NO3 and NO2 were 436 (246) mg/d and 9.5 (4.7) mg/d, which were mostly derived from plant sources (95.2% and 56.1% respectively). The highest compared to the lowest quartile of total and plant-based dietary NO3 was accompanied with a significant decreased risk of MetS (HR = 0.73, 95% CI = 0.54–0.98, HR = 0.75, 95% CI = 0.56-1.00); however, no significant association was observed between animal-based NO3 intakes and incidence of MetS. Morover, no significant association between total, plant-based and animal-based dietary intakes of NO2 and the incidence of MetS was found.

conclusionHigher total and plant-based NO3 intakes may reduce risk of MetS in adults.

Indexed as

DietMetabolic SyndromeNitratesNitritesAdultAnimalsFemaleHumansIncidenceIranMaleMiddle AgedProportional Hazards ModelsProspective StudiesRisk FactorsNitratesNitritesCohort studyDietary nitrateDietary nitriteGlucose homeostasisMetabolic syndromeNitric oxidePlant-based nitrate

Identifiers

PMID41286967
PMCPMC12764135

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Registered trials

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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.