Cohort study2026Industry fundedOpen access

Funded in part by Egg Nutrition Center

Egg Intake and the Incidence of Alzheimer's Disease in the Adventist Health Study-2 Cohort Linked with Medicare Data

Oh J, Oda K, Chiriac G, Fraser GE, Sirirat R, Sabaté J

The Journal of nutrition · 1 citation

Review labels

Food frequency questionnaireIndustry funded

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Food frequency questionnaire

Who paid for it

Funding
Industry funded
Industry group
Egg Nutrition Center
Government
National Cancer Institute
Government
National Institutes of Health National Cancer Institute
Grants
National Cancer Institute (1U01CA152939)

Based on 3 listed funder(s) and full-text disclosure statement.

Publication

Published
2026-04-17 · J Nutr · vol. 156 · issue 6 · p. 101541
Publisher
Elsevier BV
Cited
2 citations · more than 99% of similar papers · 15.1× the field average
Impact
Top 10% most cited in its field
References
28 works
Access
Open access (hybrid journal) · CC-BY
Research areas
Nutritional Studies and Diet · Food composition and properties · Alzheimer's disease research and treatments
Keywords
Hazard ratio, Proportional hazards model, Cohort, Incidence (geometry), Cohort study, Disease, Confidence interval, Prospective cohort study, Nutrient
MeSH
humans, alzheimer disease, diet, incidence, proportional hazards models, risk factors, cohort studies, prospective studies, life style, eggs, aged, aged, 80 and over, medicare, united states, female, male

6 authors

From US

  • Jisoo Oh · correspondingLoma Linda University; Loma Linda University Health Care
  • Keiji OdaLoma Linda University; Loma Linda University Health Care
  • Gabriela ChiriacLoma Linda University; Loma Linda University Health Care
  • Gary E. FraserLoma Linda University; Loma Linda University Health Care
  • Rawiwan SiriratLoma Linda University; Loma Linda University Health Care
  • Joan SabatéLoma Linda University

Abstract

Background

A substantial knowledge gap remains regarding the relationship between modifiable dietary factors and Alzheimer's disease risk. Eggs are a source of key nutrients that support brain health.

Objectives

The aim of this study was to investigate the association between egg consumption and the incidence of Alzheimer's disease.

Methods

Data were drawn from the Adventist Health Study-2, a large, prospective cohort of United States Seventh-day Adventists, linked with Medicare records to identify Alzheimer's disease diagnosis. Diet and lifestyle factors were assessed using a validated food frequency questionnaire. Egg consumption was categorized by frequency, ranging from never/rarely to ≥5 times per week. The analytic sample included 39,498 participants (mean follow-up: 15.3 y), among whom 2858 developed Alzheimer's disease. Multivariable-adjusted Cox proportional hazards models estimated hazard ratios (HRs) and 95% confidence intervals (CIs). Restricted cubic spline analysis was conducted using continuous egg intake (g/d).

Results

Egg consumption was inversely associated with Alzheimer's disease risk. Compared with never/rarely consuming eggs, HRs (95% CIs) after adjusting for demographic, lifestyle, food groups, and comorbidities were 0.83 (0.75, 0.92) for 1-3 times per month, 0.83 (0.74, 0.94) for once per week, 0.80 (0.71, 0.90) for 2-4 times per week, and 0.73 (0.60, 0.89) for ≥5 times per week. In the spline model, zero egg intake was curvilinearly associated with an adjusted HR of 1.22 (1.11, 1.34) compared with 10 g/d.

Conclusions

In this health-conscious population, moderate egg consumption was associated with a significantly lower risk of Alzheimer's disease. These findings suggest a potential neuroprotective benefit of nutrients found in eggs when consumed as part of a balanced diet.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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