Best Supplements for Improved Depressive Symptoms
Ranked by research evidence. Compare 25 supplements across 33 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Moderate evidence4 studies
Across 4 studies (all systematic reviews or reviews), all reported beneficial effects of Bifidobacterium bifidum Rosell-71 on depressive symptoms, with a predominantly moderate effect size. Only 1 study reported statistically significant findings. The most studied populations were adults with psychiatric and cognitive disorders, though no specific dose or duration was consistently reported.
- Low evidence3 studies
Across 3 studies (all reviews), all reported beneficial moderate-sized effects on depressive symptoms, with two reaching statistical significance. The evidence base is small and consists largely of reviews, so conclusions should be considered preliminary.
- ModerateBifidobacterium bifidum Rosell-71Across 4 studies (all systematic reviews or reviews), all reported beneficial effects of Bifidobacterium bifidum Rosell-71 on depressive symptoms, with a predominantly moderate effect size. Only 1 study reported statistically significant findings. The most studied populations were adults with psychiatric and cognitive disorders, though no specific dose or duration was consistently reported.4 beneficial4 studies
- LowBifidobacterium breve Rosell-70Across 3 studies (all reviews), all reported beneficial moderate-sized effects on depressive symptoms, with two reaching statistical significance. The evidence base is small and consists largely of reviews, so conclusions should be considered preliminary.3 beneficial3 studies