MIND diet may help slow brain aging linked to Alzheimer's

A study of more than 1,600 adults in the Framingham Heart Study found higher MIND diet scores were associated with slower grey matter loss and reduced ventricular enlargement on MRI. The research is observational and authors describe these results as an association, not proof of a causal effect.

The MIND diet was designed to emphasize foods and nutrients thought to support brain health. Researchers used data from the Framingham Heart Study Offspring cohort to look for links between MIND diet adherence and long-term structural brain changes. Study participants were followed with periodic health checks, food questionnaires, and MRI scans over many years. The authors wanted to see whether higher MIND scores aligned with slower brain atrophy, a feature connected to cognitive decline and dementia. Key findings: - The analysis included more than 1,600 adults with an average age of about 60 who had repeated health exams and MRI scans. - Average MIND diet score in the group was slightly under 7 out of a possible 15. - Higher MIND diet scores were associated with slower loss of grey matter; each 3-point increase corresponded to about 20% less age-related grey matter decline and an estimated 2.5 years of delayed brain aging on average. - Higher scores were also linked to slower annual growth of total ventricular volume, equivalent to about 8% lower tissue loss and roughly 1 year of delayed brain aging. - Authors and outside clinicians noted the study is observational; the reported figures represent statistical associations rather than proof that changing diet will produce the same effect for any individual. Summary: The study found measurable associations between greater adherence to the MIND diet and a slower trajectory of structural brain aging on MRI scans, which aligns with prior research linking the diet to lower dementia risk. Further research and replication are needed to explore mechanisms and confirm whether these associations reflect causal effects.