Saffron (Crocus sativus) for depression: a systematic review of clinical studies and examination of underlying antidepressant mechanisms of action
Key Finding
Saffron (30mg daily) is as effective as conventional antidepressants for depression with fewer side effects.
Plain-English Summary
This systematic review examined six randomized controlled trials investigating saffron for depression in adults. Studies used doses of 30mg daily (typically 15mg twice daily) of saffron extract over 6-8 weeks.
Results consistently showed that saffron was significantly more effective than placebo at reducing depressive symptoms. Several studies also found saffron comparable in efficacy to conventional antidepressants (fluoxetine and imipramine) with fewer side effects, particularly sexual dysfunction.
Saffron appears to work through multiple mechanisms including modulation of serotonin, dopamine, and norepinephrine systems, as well as anti-inflammatory and antioxidant effects. The active compounds crocin and safranal are believed responsible for the therapeutic effects. Saffron was well-tolerated across all studies, making it a promising natural alternative or adjunct for depression treatment.