--- title: How What You Eat May Affect Your Brain Size description: Researchers say what you eat can influence some structures of the brain, and that diet may one day be a way to address brain disorders. canonical: https://time.com/5279288/how-diet-affects-your-brain-size/ author: Alice Park article:opinion: false article:content_tier: free article:published_time: 2018-05-16T20:00:29.000Z article:modified_time: 2026-02-23T20:17:28.896Z article:section: Health og:title: How What You Eat May Affect Your Brain Size og:description: Researchers say that diet can influence certain brain structures og:url: https://time.com/5279288/how-diet-affects-your-brain-size/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt0fc35ccee26a90ab/6988c14d86f68ef95d6e41d3/time-health-stock-healthy-food.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 5205 og:image:height: 2928 og:image:alt: time-health-stock og:type: article twitter:card: summary_large_image twitter:title: How What You Eat May Affect Your Brain Size twitter:description: Researchers say that diet can influence certain brain structures twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt0fc35ccee26a90ab/6988c14d86f68ef95d6e41d3/time-health-stock-healthy-food.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # How What You Eat May Affect Your Brain Size  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent May 16, 2018 8:00 PM UTC  Freshly harvested vegetable and food in a vintage basket Freshly harvested vegetable and food in a vintage basketGetty Images  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent May 16, 2018 8:00 PM UTC Can your diet affect your brain? A new study published in _Neurology_ suggests that people who eat healthy diets may have larger brain volumes. Meike Vernooij, a professor in epidemiology and radiology at Erasmus University Medical Center in the Netherlands, and her colleagues wanted to see how diet might impact the brain. They asked more than 4,000 older people in the Netherlands (average age: 66) about what they ate and analyzed brain scans over 10 years. People who ate [healthier diets](http://time.com/3934342/diet-healthy-eating/) resembling the Mediterranean diet — rich in fruits, vegetables and healthy fats from sources like fish, and low in red meat — showed larger total brain volume. They also had more grey and white matter, which is a way of measuring the amount of nerve density in the brain. The area of the brain that’s responsible for processing memories, called the hippocampus, was also larger in people who ate healthier diets. Vernooij and her team also analyzed the effect of individual foods and nutrients, and found that no single component of the diet was responsible for the apparent benefit. The combined effect of eating more fruits and vegetables, whole grains, nuts, dairy and fish seemed to contribute to larger brain volume. The researchers also found that people who drank fewer [sugar-sweetened beverages](http://time.com/2826750/theres-even-more-sugar-in-soda-than-you-think/) like sodas also had larger brain volumes. While the study did not delve into whether diet could change brain volumes or affect brain function, Vernooij and Pauline Croll, a co-author on the paper and a PhD student in epidemiology and radiology at Erasmus, believe the findings could lead to new research on how diet could affect brain disorders. “I do think these results open up a lot of opportunities,” says Croll. “It’s already known that a healthy diet is associated with better brain health, and that it is protective against neurodegeneration. But to truly say that a good diet can lower the risk of [dementia](http://time.com/4866813/prevent-dementia-alzheimers-disease/), we need larger studies and \[longer\] follow up.” The team hopes to continue their work and look at whether changes in diet can possibly affect brain volumes and potentially increase volumes to slow or reverse cognitive decline. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/5279288/how-diet-affects-your-brain-size/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/5279288/how-diet-affects-your-brain-size/"},"headline":"How What You Eat May Affect Your Brain Size","datePublished":"2018-05-16T20:00:29.000Z","dateModified":"2026-02-23T20:17:28.896Z","description":"Researchers say that diet can influence certain brain structures","url":"https://time.com/5279288/how-diet-affects-your-brain-size/","keywords":["Diet & Nutrition","Brain","healthytime"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0fc35ccee26a90ab/6988c14d86f68ef95d6e41d3/time-health-stock-healthy-food.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Alice Park","jobTitle":"Senior Correspondent","url":"https://time.com/author/alice-park/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0fc35ccee26a90ab/6988c14d86f68ef95d6e41d3/time-health-stock-healthy-food.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"time-health-stock","caption":"Fresh Vegetable And Food in Basket","creditText":"Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/dietnutrition/","name":"Diet & Nutrition"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/5279288/how-diet-affects-your-brain-size/","name":"How What You Eat May Affect Your Brain Size"}}]}] ```