Evidence map›Paper›PMID 32936862›Full record

ArticleThe American journal of clinical nutrition2020

Association of diet with circulating trimethylamine-N-oxide concentration.

Rikuta Hamaya, Kerry L Ivey, Dong H Lee, Molin Wang, Jun Li, Adrian Franke, Qi Sun, Eric B Rimm

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% of its field
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Gut microbes · 2026
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 3 countries.

Rikuta HamayaDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Kerry L IveyDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Dong H LeeDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Molin WangDepartment of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA.
Jun LiDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Adrian FrankeUniversity of Hawaii Cancer Center, Honolulu, HI, USA.
Qi SunDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Eric B RimmDepartment of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA.
Harvard University · USBrigham and Women's Hospital · USTokyo Medical and Dental University · JPUniversity of Hawaiʻi at Mānoa · US

Funding

University of Hawaii Cancer Center CCSGP30CA071789 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI Xin Chen · 1996 to 2026
$56.2M
Cancer Epidemiology Cohort in Male Health ProfessionalsU01CA167552 · NCI · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI Lorelei Mucci, Walter C. Willett · 2017 to 2026
$17.0M
Dietary Etiology of Heart DiseaseR01HL035464 · NHLBI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ERIC B RIMM, Qi Sun · 1986 to 2026
$13.6M
Cancer Epidemiology Cohort in Male Health ProfessionalsUM1CA167552 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WILLETT, WALTER C. · 2012 to 2016
$11.5M
Validity of Diet and Activity Measures in MenU01CA152904 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI RIMM, ERIC B, STAMPFER, MEIR · 2010 to 2013
$7.2M
Ultra-processed Foods, Diet Quality, and Cardiometabolic Health: An Inter-disciplinary Trans-Atlantic Collaborative ProjectR01DK120870 · NIDDK · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI Qibin Qi, Qi Sun · 2019 to 2026
$4.2M
Characterizing the gut microbial ecosystem for diagnosis and therapy in IBDU54DE023798 · NIDCR · BROAD INSTITUTE, INC. · PI HUTTENHOWER, CURTIS, XAVIER, RAMNIK J · 2013 to 2014
$3.0M
Dietary sulfur, the gut microbiome, and colorectal cancerR01CA202704 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI CHAN, ANDREW T, GARRETT, WENDY S. · 2016 to 2020
$2.8M
Mentored Patient-Oriented Research in Digestive DiseasesK24DK098311 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI CHAN, ANDREW T · 2013 to 2017
$930k
NCI NIH HHS P30 CA071789NCI NIH HHS R01 CA202704NCI NIH HHS U01 CA152904NCI NIH HHS U01 CA167552NCI NIH HHS UM1 CA167552NHLBI NIH HHS R01 HL035464NIDCR NIH HHS U54 DE023798NIDDK NIH HHS K24 DK098311NIDDK NIH HHS R01 DK120870
6 · The paper itself

Abstract

backgroundTrimethylamine-N-oxide (TMAO) is a compound that is present in seafood and produced through human gut microbial metabolism of its precursors. Previous studies have suggested that elevated TMAO concentrations are associated with an increased risk of cardiovascular events. However, the association between diet and TMAO concentrations in free-living adult populations has not been adequately described.

objectivesThe objective of this study was to identify dietary predictors of plasma TMAO concentrations.

methodsTMAO concentrations were assessed in 2 fasting plasma samples collected 6 mo apart among 620 healthy men. Short-term and long-term dietary intakes were assessed during the same time-frame of blood collections via repeated 7-d dietary records (7DDRs) and a semiquantitative food-frequency questionnaire (SFFQ), respectively. We grouped individual food items into 21 groups and regressed against averaged TMAO concentrations. We also assessed the association between dietary scores and TMAO concentrations.

resultsIn models adjusted for demographic characteristics and mutually adjusted for food groups, SFFQ-assessments of fish and egg intakes were significantly associated with increased TMAO concentration (β = 0.082; 95% CI: 0.021, 0.14; P = 0.009 for fish; β = 0.065; 95% CI: 0.004, 0.13; P = 0.039 for egg). The positive association between fish consumption and TMAO concentration was replicated in the 7DDR-assessments (β = 0.12; 95% CI: 0.060, 0.18; P < 0.001). There was no association between red meat intake and TMAO concentrations. The unhealthful plant-based diet index (uPDI) was inversely associated (β = -0.013; 95% CI: -0.021, -0.005; P = 0.001) and healthy dietary scores were positively correlated with TMAO concentration.

conclusionsTMAO concentration was significantly associated with fish intake, but not with red meat consumption. uPDI, an unhealthy dietary pattern, was inversely related to TMAO concentration. As such, this study suggests that in free-living populations, higher circulating concentrations of TMAO cannot simply be interpreted as a marker of unhealthy food intake or an unhealthy dietary pattern.

Indexed as

DietAdultAgedAnimalsFishesHumansMaleMethylaminesMiddle AgedShellfishMethylaminestrimethyloxamine7-d dietary recordsfishplant-based diet indexred meatsemiquantitative food-frequency questionnairetrimethylamine-N-oxide

Identifiers

PMID32936862
PMCPMC7727477
OpenAlexW3087029208

What OpenQuestion holds

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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.