Lifestyle
Nutrition for Mental Health
Food doesn't cure depression, but diet quality is one of the most replicable lifestyle correlates of mood.
Medically reviewed by: Pending medical review(draft)Last updated: June 4, 2026Evidence: Synthesis of nutritional psychiatry meta-analyses
What the research suggests
- Mediterranean pattern: associated with ~30% lower depression risk in cohort studies.
- Omega-3 (EPA-dominant): 1–2 g/day shows small but consistent antidepressant effects as an adjunct.
- Fiber & fermented foods: support gut microbial diversity, which correlates with mood regulation via the gut-brain axis.
- Blood-sugar stability: large glucose swings worsen irritability and fatigue; protein and fiber at each meal help.
- Ultra-processed foods: higher intake is linked to higher depression and anxiety risk in dose-response analyses.
Practical starting points
- Add one serving of leafy greens or legumes daily.
- Eat fatty fish twice a week, or consider an EPA-rich omega-3 supplement.
- Anchor breakfast with protein + fiber to stabilize energy.
- Reduce ultra-processed snacks by half before trying to eliminate them.
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