Full profile
| Also known as | Berry polyphenols, Standardized berry extract |
|---|---|
| Best for | Antioxidant support · Healthy circulation · Long-term cognitive-health interest |
| Evidence grade | Grade C — Limited — early or small human trials |
| Studied dose range | Varies widely by source and standardization; look for a stated anthocyanin content. |
| Time to effect | Generally a long-term, daily-use ingredient rather than acute. |
| Best form | Standardized berry extract stating anthocyanin percentage or milligrams. |
| Food sources | Blueberries, Blackcurrants, Elderberries, Bilberries |
Evidence, honestly graded
Human data is growing but still limited for cognitive endpoints specifically. Antioxidant and circulation mechanisms are better characterized.
See the full grading rubric — study type, replication, population match, and dose adequacy — in The Evidence Standard.
Side effects
- Generally well tolerated as a food-derived polyphenol
Who should avoid it or check first
- Known berry allergy
- Pregnant or breastfeeding without clinician guidance
Interactions
- Limited interaction data; discuss with a clinician if on medication
Stacks well with
- General daily nutrition
What to look for on a label
- Look for a stated anthocyanin content, not just total fruit weight.
- Whole-food berry powders differ greatly from standardized extracts.
References
- Berry polyphenol reviews. Antioxidant and circulation literature used for education.
Entries above without a linked identifier are either editorial summaries of a wider body of literature or references to a named authority (a regulator or government monograph) cited by name rather than by a single paper.
Grades and studied doses are our conservative reading of the human research, shown for education. They are not product claims, and a studied dose is not a recommended dose.
Revision history
Every change to this ingredient's evidence status, dated and explained. The full cross-library log lives at Evidence Updates.
- 2026-07-04New profile
Initial profile published at Grade C: a growing but still limited human evidence base on cognitive endpoints specifically.
See how Anthocyanins compares on grade, dose, and goal in the Evidence Explorer.
