Summary:

- The article examines the effects of omega-3 fatty acid supplementation on cognitive function and brain structure in older adults.
- The study involved a randomized, double-blind, placebo-controlled trial with 174 participants aged 65-90 years, who were given either omega-3 supplements or a placebo for 12 months.
- The results showed that omega-3 supplementation was associated with improved cognitive function, particularly in areas such as memory and processing speed, as well as increased gray matter volume in certain brain regions.