Eggs for Brain Health

Research suggests that eggs may offer meaningful benefits for brain health, with the most notable evidence coming from a large longitudinal study of older adults that found frequent egg consumers had roughly 47% lower risk of developing Alzheimer's dementia, with choline — a nutrient concentrated in eggs — accounting for a meaningful portion of that association. Supporting this, a cell-culture study found that phosphatidylcholine, a phospholipid abundant in egg yolks, reduced inflammatory signaling in brain immune cells, and a separate review reported that peptides derived from eggs showed promise in reducing inflammation and supporting cognitive function in Alzheimer's disease models. The available evidence spans observational studies, laboratory experiments, and literature reviews rather than controlled clinical trials, which means causation cannot be established and the findings should be interpreted cautiously. A broader systematic review of dietary patterns and dementia risk reached only mixed conclusions, underscoring that the overall relationship between diet and brain health remains an active and unsettled area of research.