15 January 2026

Mediterranean Diet Linked to Slower Cognitive Decline in Older Adults

New research suggests that older adults who closely follow a Mediterranean-style diet experience slower rates of cognitive decline over time, with better preservation of memory and executive function. The study adds to growing scientific evidence that long-term dietary patterns play a significant role in brain health and may influence the risk of developing age-related cognitive impairment and dementia.Researchers found that participants who regularly consumed foods typical of the Mediterranean diet, including vegetables, fruits, whole grains, legumes, nuts, olive oil and fish, performed better on cognitive tests than those with lower adherence. These foods are rich in antioxidants, healthy fats and anti-inflammatory compounds that are believed to protect brain cells, support blood flow to the brain and reduce oxidative stress that contributes to neurodegeneration.