Study Links Regular Egg Consumption to Lower Alzheimer's Risk in Older Adults
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Adults aged 65 and older who eat eggs regularly may have a lower risk of developing Alzheimer's disease, according to new research. The study found the strongest association with eating at least one egg per day for five or more days each week, which was linked to up to a 27% lower risk. The findings, published in the Journal of Nutrition, add to the understanding of how diet might influence long-term brain health.
Facts First
- Eating eggs at least five days a week was linked to up to a 27% lower Alzheimer's risk for adults 65 and older.
- The study followed about 40,000 participants for over 15 years, tracking egg intake and Alzheimer's diagnoses via Medicare data.
- Eggs contain nutrients like choline and lutein that are used by the body for brain cell communication and memory.
- The research was funded in part by the American Egg Board, with the National Institutes of Health (NIH) supporting the original cohort study.
What Happened
Researchers at Loma Linda University Health reported that eating eggs may be linked to a lower risk of developing Alzheimer's disease in adults aged 65 and older. The study, published in the Journal of Nutrition, followed approximately 40,000 participants in the Adventist Health Study 2 (AHS-2) cohort for an average of 15.3 years. Alzheimer's cases were identified via physician diagnoses recorded in Medicare data. The study found that individuals eating at least one egg per day for five or more days each week had up to a 27% lower risk of being diagnosed with Alzheimer's disease. Lower frequencies of consumption were also associated with reduced risk: eating eggs 1 to 3 times per month was linked to a 17% reduction, and eating eggs 2 to 4 times per week was associated with about a 20% lower risk.
Why this Matters to You
If you or a family member are over 65, incorporating eggs into your diet a few times a week could be a simple dietary step that may support long-term brain health. The nutrients in eggs, such as choline, lutein, and omega-3 fatty acids, are used by the body for functions related to memory and brain cell structure. This research suggests that a modest, accessible food choice might contribute to lowering the risk of a disease that affects millions of families.
What's Next
The researchers have identified a promising association, but more studies are likely needed to confirm a direct cause-and-effect relationship between egg consumption and Alzheimer's prevention. Future research may explore the specific mechanisms by which egg nutrients influence brain health. For now, the findings add to a growing body of evidence on the potential cognitive benefits of certain dietary patterns.