Ellagic Acid
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A polyphenol compound found naturally in pomegranates, raspberries, strawberries, and walnuts. As a supplement ingredient it is usually sold as an isolated compound rather than as the whole fruit.
Why it’s used
Taken by some for its antioxidant properties and as part of general polyphenol-focused supplementation.
What the evidence says
Most of the human research on ellagic acid's effects comes from studies of whole pomegranate juice or extract, which contains ellagic acid along with many other compounds (ellagitannins that convert to urolithins in the gut). It is not clear how much of any observed effect is attributable to isolated ellagic acid itself versus the broader mixture, and direct human trials on the isolated compound are limited.
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: 12 records · searched August 2026
"Ellagic Acid"[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: 4636 records · searched August 2026
"Ellagic Acid"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Evidence for polyphenol effects in this family appears to exist, but it could not be verified here to a citable source for isolated ellagic acid specifically. A reviewer looking to resolve this should search for trials of standardized pomegranate extract or ellagitannin/urolithin research, rather than isolated ellagic acid, since most of the literature is built around the whole-fruit form.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.