Total and different types of olive oil consumption, gut microbiota, and cognitive function changes in older adults (Published: 24 January 2026) https://link.springer.com/article/10.1186/s40168-025-02306-4 Extra virgin olive oil could boost brain power by reshaping your gut power https://www.sciencedaily.com/releases/2026/04/260417224527.htm Unlike refined oils, it retains beneficial compounds that appear to support both gut diversity and cognitive performance.