Carbohydrate intake

Intervention2 papers3 findings

C · W · M · H: cells, worms or flies, mice, humans. Dark: independent labs found the same change there. Light: one lab or one study. Outline: nothing yet.

Labs are independent when their papers share no last author and no institution.

Against: findings that point the other way from most findings on the same outcome.

No results posted: trials that ended more than a year ago with no results on ClinicalTrials.gov and no paper in ARN’s record.

Company ties: findings with an author at a company, or from a paper that declares the maker’s interest.

2 independent labs in 2 countries1 finding against

Funders: Japan Health Research Promotion Bureau and others

  • Humans2

Outcomes

2

Pure-tone audiometry

no changein humans1

1 study
  1. Carbohydrate intake has no effect on pure-tone audiometry in humans.

    Humansup to 30 yearsn = 2,773

    Association between midlife macronutrient intake and late-life hearing loss: the Atherosclerosis Risk in Communities Study · The journals of gerontology. Series A, Biological sciences and medical sciences · 4 Sep 2026

Pure-tone audiometry →

Atrial fibrillation

no changein humans1HR 1.33

1 study
  1. Carbohydrate intake has no effect on atrial fibrillation in humans (HR 1.33, 95% CI 0.27 to 6.65).

    Humansin women, Q4 vs Q1femalesn = 5,229

    Association of carbohydrate, rice, noodle and bread consumption and atrial fibrillation risk in a Japanese urban population: a prospective cohort study · BMJ open · 24 Aug 2026

Atrial fibrillation →

Associations

1

Atrial fibrillation

upin humans1HR 2.51

1 study
  1. Carbohydrate intake raises the risk of atrial fibrillation in humans (HR 2.51, 95% CI 1.06 to 5.96).

    Humansin men, Q4 vs Q1malesn = 5,229

    Association of carbohydrate, rice, noodle and bread consumption and atrial fibrillation risk in a Japanese urban population: a prospective cohort study · BMJ open · 24 Aug 2026

Atrial fibrillation →

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