Fish oil for brain health: Are omega-3 supplements actually good?

In theory, taking an omega-3, or fish oil, supplement makes a lot of sense.Omega-3 fatty acids are vital for brain health: They are used to build brain cells, keeping the cell walls flexible and enabling the neurons to sprout new connections and communicate with other cells. Numerous studies have shown that people with higher levels of omega-3s in their blood have better cognition and healthier looking brains, as well as a lower risk of developing dementia. In contrast, people with Alzheimer’s disease have been shown to have lower omega-3 levels.But there’s a catch: The vast majority of clinical trials have found that omega-3 supplements offer virtually no benefit for cognition or dementia symptoms.“It kind of intuitively makes sense” that neurons need fatty acids for their health, so you