# What oily fish really does for your brain

BBC Health examines the evidence behind claims that oily fish benefits brain health. It explains what research says about omega-3s, cognition, and memory. The piece helps readers separate useful dietary advice from overblown health promises.

**Importance:** 2/5

## Sources

### Health
- [BBC Health](https://www.bbc.co.uk/videos/cm70dy5e055jo?at_medium=RSS&at_campaign=rss) — Thu, 24 Sep 2026 07:23:56 GMT