Omega-3 vs Zinc

for mood

Stronger evidence: tie

Stronger effect: Omega-3

Safety: Omega-3 carries a serious interaction; Zinc has none recorded.

For mood, the two are evidence-matched; the difference is in effect and safety.

Omega-3

grade C moderate certainty

small benefit for depressive symptoms, clearest with higher-EPA formulations

1–2 g EPA, adults with depression

Zinc

grade C low certainty

may augment antidepressant response; deficiency-correction likely matters

25 mg/day, adults
sources: PMID:20000102 · PMID:42197650