Raspberry ketone
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A naturally occurring aromatic compound that gives raspberries much of their characteristic smell. The version sold in supplements is usually made synthetically, since extracting it from actual raspberries in useful quantities is impractical.
Why it’s used
Marketed and taken for weight loss, largely on the strength of its chemical similarity to synephrine and capsaicin, other compounds studied for metabolic effects.
What the evidence says
There is essentially no human clinical trial evidence for raspberry ketone taken on its own. What exists is animal and cell-based research, plus studies of combination weight-loss products that include raspberry ketone alongside several other ingredients, which cannot isolate its individual effect. The popular weight-loss claim outran the science that would support it.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 1 record · searched August 2026
"Raspberry ketone"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 192 records · searched August 2026
"Raspberry ketone"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Animal studies have used doses far higher, relative to body weight, than what appears in human supplements, and no standardized human dosing protocol has been established through clinical trials.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.