Does diet affect depression?

Yes. Western high-sugar, high-processed-food diets increase depression risk. Mediterranean and whole-food diets lower risk. Nutrition influences brain chemistry and inflammation.

What nutrients protect against depression?

Omega-3 fatty acids, B vitamins, folate, vitamin D, zinc, and magnesium show protective associations. Deficiencies in these correlate with depression.

Can diet alone treat depression?

Diet alone is insufficient for clinical depression. However, combined with therapy, medication, and exercise, healthy eating improves outcomes and complements treatment.

Is the Mediterranean diet proven for depression?

Yes. The PREDIMED study and meta-analyses show Mediterranean diet adherence correlates with lower depression. It's recommended as part of integrative care.

Sciencedepression-screener

Diet and Depression: Nutrition's Role in Mental Health

Peter Kolomiets

|April 4, 2026|Updated Apr 13, 2026|6 min

Diet and Depression: Nutrition's Role in Mental Health

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References

Sarris J, Ashton A, Williamson D (2013). Diet and Depression: A Systematic Review
Sánchez-Villegas A, Martínez-González MA (2013). The Mediterranean Diet and Depression: Meta-Analysis