Mental Health

Mental health evidence covers lifestyle, dietary, and behavioral factors studied in relation to mood and depression symptoms. Findings here are often mixed or evolving, and this hub is explicit about where the evidence is strong versus where it remains uncertain.

1 evidence record in this topic

Mixed Evidence

Do omega-3 fatty acid supplements reduce symptoms of depression?

Cochrane Database of Systematic Reviews · 2021

The evidence is mixed. Some meta-analyses of randomized trials find a modest reduction in depression symptoms with omega-3 supplementation, particularly formulations high in EPA, while the most rigorous Cochrane systematic review found the evidence overall is low to moderate certainty and any benefit, if real, appears to be small.