{"id":46243,"date":"2026-05-05T09:22:13","date_gmt":"2026-05-05T14:22:13","guid":{"rendered":"https:\/\/www.incredibleegg.org\/?post_type=nutrition_article&p=46243"},"modified":"2026-05-05T09:22:13","modified_gmt":"2026-05-05T14:22:13","slug":"reduced-risk-of-alzheimers-disease","status":"publish","type":"nutrition_article","link":"https:\/\/www.incredibleegg.org\/nutrition\/articles\/reduced-risk-of-alzheimers-disease\/","title":{"rendered":"New and Consistent Data: Including Eggs as Part of a Balanced Diet is Associated with Reduced Risk of Alzheimer\u2019s Disease"},"content":{"rendered":"
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While Alzheimer\u2019s Disease (AD) is a complex condition with many potential contributing factors, focusing on risk factors you can change, including physical activity and what you eat, are increasingly recognized as a critical piece of risk reduction [1]. Data from the Rush Memory and Aging Cohort showed, for the first time, that weekly consumption of eggs (more than one egg per week) was associated with a 47% reduction in the risk of Alzheimer\u2019s dementia, a finding driven by dietary choline [2]. A new study published in The Journal of Nutrition<\/em> provides even more evidence of the strong association between eating eggs and reduced risk of AD<\/strong> [3]. These studies are consistent with research across the lifespan which demonstrates that nutrients found in eggs are important to support brain health [4-7].<\/p>\n<\/div>\n\n

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Data from The Adventist Health Study-2 (AHS-2) cohort, a health-conscious aging population, were used to evaluate the impact of egg consumption on the risk of AD [3]. Participants were grouped based on how often they ate eggs: never\/rarely; 1-3 times\/month; once\/week; 2-4 times\/week, or 5 or more times\/week based on a food frequency questionnaire that captured visible egg consumption (e.g., boiled, scrambled, omelet). Total egg intake was estimated to account for all eggs, including those found in mixed dishes and baked foods.<\/p>\n<\/div>\n\n

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During an average follow-up of 15.3 years, 2,858 out of 39,498 participants were diagnosed with AD. Notably, 32% of participants with AD did not eat eggs; this lack of egg consumption was linked to a significantly higher risk of AD incidence. The frequency of egg consumption was independently associated with reduced risk of AD, ranging from a 17% reduced risk for those consuming eggs 1-3 times\/month to a 27% reduced risk for those consuming eggs 5 or more times\/week, compared to no egg intake [3].<\/p>\n<\/div>\n\n

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In both the AHS-2 and Rush Memory and Aging Cohort studies, the authors connect egg consumption and reduced risk of Alzheimer\u2019s disease to the nutrient content of eggs [2, 3]. Eggs provide high-quality protein and contribute dietary components that can support brain health, including choline (25% DV), docosahexaenoic acid (DHA, 29 mg), and vitamin B12<\/sub> (20% DV) [2, 4, 8-10].<\/p>\n<\/div>\n\n

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How many eggs is enough to reduce the risk of AD? The main message from the new AHS-2 study is that moderate consumption of eggs, as part of a healthy dietary pattern, is associated with reduced risk of AD<\/strong>. There is no magic number, but nutrient-rich eggs can play a key role in a healthy dietary pattern that meets recommended limits for saturated fat, sodium, and added sugars. The American Heart Association also recognizes the value of eggs for healthy aging adults and recommends, \u201c\u2026given the nutritional benefits and convenience of eggs, consumption of up to 2 eggs per day is acceptable within the context of a heart-healthy diet pattern [11].\u201d <\/p>\n<\/div>\n\n

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The good news is that it is never too late to start eating healthy, and adding eggs to a diet rich in fruits, vegetables, and other whole nutrient-rich foods can help support health throughout the lifespan [12, 13].<\/p>\n<\/div>\n\n

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References<\/a><\/h3>\n \n
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  1. 2024 Alzheimer’s disease facts and figures.<\/em> Alzheimers Dement, 2024. 20<\/strong>(5): p. 3708-3821.<\/li>\n
  2. Pan, Y., et al., Association of Egg Intake With Alzheimer\u2019s Dementia Risk in Older Adults: The Rush Memory and Aging Project.<\/em> The Journal of Nutrition, 2024.<\/li>\n
  3. Oh, J., et al., Egg intake and the incidence of Alzheimer’s disease in the Adventist Health Study-2 cohort linked with Medicare data.<\/em> J Nutr, 2026: p. 101541.<\/li>\n
  4. Christifano, D.N. and L. Bennett, Early Life Nutrition and the Developing Brain.<\/em> Supplement to the Journal of Family Practice, 2023. 72<\/strong>(6): p. S25-30.<\/li>\n
  5. Kritz-Silverstein, D. and R. Bettencourt, Egg Consumption and 4-Year Change in Cognitive Function in Older Men and Women: The Rancho Bernardo Study.<\/em> Nutrients, 2024. 16<\/strong>(16): p. 2765.<\/li>\n
  6. Kritz-Silverstein, D. and R. Bettencourt, The Longitudinal Association of Egg Consumption with Cognitive Function in Older Men and Women: The Rancho Bernardo Study.<\/em> Nutrients, 2023. 16<\/strong>(1).<\/li>\n
  7. Lee, G.J., et al., Egg intake moderates the rate of memory decline in healthy older adults.<\/em> Journal of Nutritional Science, 2021. 10<\/strong>: p. e79.<\/li>\n
  8. Wallace, T.C., A Comprehensive Review of Eggs, Choline, and Lutein on Cognition Across the Life-span.<\/em> J Am Coll Nutr, 2018. 37<\/strong>(4): p. 269-285.<\/li>\n
  9. Lauer, A.A., et al., Mechanistic Link between Vitamin B12 and Alzheimer’s Disease.<\/em> Biomolecules, 2022. 12<\/strong>(1).<\/li>\n
  10. U.S. Department of Agriculture. FoodData Central SR Legacy — Egg, whole, raw, fresh<\/em>. 2019; Available from: https:\/\/fdc.nal.usda.gov\/food-details\/171287\/nutrients<\/a>.<\/li>\n
  11. Carson, J.A.S., et al., Dietary Cholesterol and Cardiovascular Risk: A Science Advisory From the American Heart Association.<\/em> Circulation, 2020. 141<\/strong>(3): p. e39-e53.<\/li>\n
  12. U.S. Department of Health and Human Services and U.S. Department of Agriculture. 2020-2025 Dietary Guidelines for Americans<\/em>. 2020; Available from: https:\/\/www.dietaryguidelines.gov\/sites\/default\/files\/2020-12\/Dietary_Guidelines_for_Americans_2020-2025.pdf<\/a>.<\/li>\n
  13. U.S. Department of Agriculture and U.S. Department of Health and Human Services. 2025-2030 Dietary Guidelines for Americans<\/em>. Available from: https:\/\/cdn.realfood.gov\/DGA.pdf<\/a>.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n\n
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    <\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

    While Alzheimer\u2019s Disease (AD) is a complex condition with many potential contributing factors, focusing on risk factors you can change, including physical activity and what you eat, are increasingly recognized as a critical piece of risk reduction [1]. 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