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3 peer-reviewed studies
What the evidence says
Most Forskolin studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from medium-quality randomised trials published 2005–2021 with a typical study size of 30 participants.
Based on 3 studies · 3 RCTs · 53 total participants
Confidence
ModerateBy outcome
1 study in the last 5 years
A randomized trial (n=30 men) found Coleus forskohlii significantly reduced body fat and raised free testosterone; lean-mass and total-testosterone changes were not significant.
Godard MP et al. · Obes Res (2005)
A randomized study evaluated Coleus forskohlii supplementation on body composition.
Henderson S et al. · J Int Soc Sports Nutr (2005)
A randomized trial examined a forskolin-containing treatment in vitiligo (a non-weight use).
Diehl C et al. · Dermatol Ther (2021)