What to take for mood

Graded by the strength of the evidence — strongest first. Nothing here is sold to you.

St. John's Wortgrade Beffective for mild-to-moderate depression in trials
Saffrongrade Bmultiple RCTs show benefit for mild-to-moderate depressive symptoms, comparable to low-dose SSRIs in small trials
Vitamin Dgrade Csmall mood benefit, mostly in people who are deficient
5-HTPgrade Cpreliminary antidepressant signal; small, lower-quality studies
N-Acetylcysteinegrade Cpreliminary evidence as an adjunct in some psychiatric conditions; not established as a standalone
Omega-3grade Csmall benefit for depressive symptoms, clearest with higher-EPA formulations
Creatinegrade Cemerging evidence as an adjunct for depressive symptoms; trials small
Zincgrade Cmay augment antidepressant response; deficiency-correction likely matters
Probioticsgrade Csmall effects on mood/anxiety in some "psychobiotic" trials; strain-specific, heterogeneous
Turmericgrade Ccurcumin may reduce depressive symptoms as an adjunct; bioavailability-limited
Folatestudied, no effectFolic acid not recommended for unipolar depression
Vitamin Cstudied, no effectNot recommended for unipolar depression
Myo-Inositolstudied, no effectNot recommended for unipolar depression
Magnesiumstudied, no effectNot recommended for unipolar depression
Rhodiolastudied, no effectNot recommended for mood disorders