Eggs May Lower Alzheimer's Risk in Older Adults, Large Study Suggests

A large study of nearly 40,000 older adults (Adventist Health Study 2) found that regular egg consumption is associated with a lower risk of Alzheimer's disease over about 15 years: 17% lower for 1–3 eggs per month and 20% lower for 2–4 eggs per week. While not proving causation, researchers point to yolk nutrients such as choline (and other nutrients like B12, D, omega-3s, and lutein) that may support brain health, suggesting eggs can fit into a brain-healthy dietary pattern (like the MIND diet) but are not a standalone prevention.