All participants underwent MRI scans of their brains to measure total brain volume and thickness. They also finished questionnaires about their meals options and eating patterns. The researchers discovered that brain volumes of those who didn’t follow a Mediterranean diet plan were smaller than those who did. The difference was minor in general size – – equated to about five years of aging, the analysis authors said. But, more specifically, the investigators discovered that consuming more fish and less meat was associated with even less human brain shrinkage. Gu said scientists don’t yet know why the Mediterranean diet seems healthier for the brain. However, other study has established a higher intake of seafood and vegetables and a lower intake of meat are advantageous for brain cell development, she said.The patients, who were all drawn from 23 family doctor practices in one area between 1998 and 2000, were aged between 55 and 99. The assessment group had been aged between 60 and 94. Related StoriesSpecial orchestra boosts disposition and confidence in sufferers with dementiaMayo Clinic's Florida campus awarded NIH grant to recognize vascular risk elements in aging and dementiaStudy finds large prevalence of dehydration in the elderly living in UK treatment homesAll participants were asked either directly or via family members about their health background and lifestyle, including marital position and public support network.