Rutin
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A plant flavonoid glycoside found in foods such as buckwheat, citrus fruits, and apples, and extracted for use as a dietary supplement ingredient.
Why it’s used
Taken by some for its antioxidant properties and to support circulation or vascular health.
What the evidence says
There is no NIH Office of Dietary Supplements fact sheet on rutin, and human clinical research on the isolated compound is sparse. Most available data come from laboratory or animal studies, or from mixed flavonoid preparations rather than rutin alone, which makes it difficult to draw conclusions about effects in people taking rutin by itself.
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: 21 records · searched August 2026
"Rutin"[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: 10357 records · searched August 2026
"Rutin"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Some evidence on flavonoid mixtures and vascular symptoms appears to exist in the literature, but it could not be verified here to a source specific to isolated rutin at a defined oral dose. A reviewer looking to resolve this would look for randomized trials using purified rutin, rather than mixed citrus bioflavonoid or diosmin-hesperidin combination products, which are more commonly studied.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.