Evidence Level
Saffron extract is a well-researched botanical supplement with demonstrated benefits for mood and mental health. Hausenblas et al. (2013) conducted a meta-analysis of five randomized controlled trials, finding that saffron supplementation significantly reduced depression symptoms compared to placebo, with a large effect size (P < 0.001). Akhondzadeh et al. (2004, 2005) further established its efficacy by showing that 30mg of saffron extract was as effective as 20mg fluoxetine for treating mild-to-moderate depression in head-to-head trials.
Recent studies continue to validate these findings. Lopresti et al. (2025) reported that a saffron extract improved depressive symptoms in 202 adults compared to placebo in a randomized, double-blind trial. Lang et al. (2025) conducted a pilot study with 52 older adults and found that four weeks of saffron supplementation improved both subjective and objective sleep quality in those with sleep complaints. The mechanism of action involves modulation of serotonin reuptake, GABA potentiation, and anti-inflammatory effects within the central nervous system.
Lopresti and Drummond (2014) systematically reviewed six clinical trials, concluding that saffron is effective for mild-to-moderate depression with large treatment effects comparable to antidepressant medications. These studies collectively highlight saffron extract's potential as a natural alternative or adjunct to conventional antidepressants.