Anthocyanidins (unspecified)
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A broad class of plant pigments that give many fruits and vegetables their red, purple, or blue color; "unspecified" means the exact compound or plant source is not identified here.
Why it’s used
Taken by some for antioxidant properties and general interest in polyphenol intake.
What the evidence says
Research on specific anthocyanin-rich extracts, such as bilberry or blueberry, has explored roles in eye health and cardiovascular markers with some suggestive findings, but results vary by source plant and extract, and there is no NIH ODS fact sheet covering anthocyanidins as a class. Because this ingredient is unspecified, it cannot be tied to any particular study.
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: 5 records · searched August 2026
"Anthocyanidins"[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: 965 records · searched August 2026
"Anthocyanidins"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Studies of anthocyanin-rich extracts have used a range of extract doses that are not comparable across different plant sources, and none can be assumed to apply to an unnamed anthocyanidin ingredient.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.