Changes in gut bacteria caused by the Mediterranean diet are associated with improvements in memory and cognitive performance
A study from Tulane University School of Medicine in the USA suggests that the benefits of the Mediterranean diet for the brain may occur through changes in the gut microbiome. The research is published in the journal Gut Microbes Reports.
Researchers found that individuals following this diet have a different pattern of gut bacteria compared to those following a Western diet, which correlates with improvements in memory and cognitive performance.
Other study findings
- Rats fed a Mediterranean diet rich in olive oil, fish and fiber showed increases in beneficial bacteria and decreases in harmful bacteria, compared to rats fed a Western diet high in saturated fats.
- These changes were associated with better performance on memory and learning tests.
- Additionally, the Mediterranean diet group showed greater cognitive flexibility and working memory, as well as lower LDL cholesterol levels.
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The study, which used young rats to model the effects in humans, suggests that the Mediterranean diet may benefit cognitive function, especially in young adults.
Although the results still need to be confirmed by human studies, the findings indicate that the Mediterranean diet could improve school and work performance, as well as reduce the risk of dementia.
The diet includes olive oil, vegetables, fruits, fish, whole grains and lean proteins, with red meat and limited saturated fats.
Collaboration for Olhar Digital
Leandro Costa Criscuolo is a collaboration for the digital look at Olhar Digital
Bruno Capozzi is an editor at Olhar Digital
