What kind of interaction is it?

Synergy: a documented combination effect that is stronger or more useful than either substance taken alone.

Is this interaction backed by published research?

Yes. NutriStack lists 1 citation row for the Anthocyanins (Bilberry Extract) + Quercetin pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Supplement × Supplement·a synergy·Emerging evidence

Anthocyanins (Bilberry Extract) + Quercetin

Q: Can I take Anthocyanins (Bilberry Extract) and Quercetin together?

Yes. The combination of Anthocyanins (Bilberry Extract) and Quercetin produces a measurable benefit. Quercetin and bilberry anthocyanins are both flavonoids with overlapping antioxidant and vascular-stabilizing actions, and they are frequently combined for microcirculatory and capillary support.

Q: How does this affect a NutriStack Stack Score?

+2 to your Stack Score per scored synergy row.

Synergy Emerging evidence

Quercetin and bilberry anthocyanins are both flavonoids with overlapping antioxidant and vascular-stabilizing actions, and they are frequently combined for microcirculatory and capillary support.

Supplement × Supplement

Open the interaction checker → Read the methodology

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Substances

Anthocyanins (Bilberry Extract) and Quercetin

Pair type

Synergy

Evidence

Emerging

Source citations

Scope

Supplement × Supplement

Last verified

June 4, 2026

SynergyEmerging evidence

What is happening. Quercetin and bilberry anthocyanins are both flavonoids with overlapping antioxidant and vascular-stabilizing actions, and they are frequently combined for microcirculatory and capillary support.

Mechanism. Both polyphenols inhibit reactive oxygen species, reduce vascular permeability, and can mildly modulate platelet activity, giving complementary effects on capillary integrity.

Recommendation. Safe to combine with food at typical supplemental doses. Monitor for additive effects if also taking other antiplatelet or anticoagulant agents.

Stack Score

How it moves the number.

Effect on the composite score

If both Anthocyanins (Bilberry Extract) and Quercetin are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1Pojer E, et al. The case for anthocyanin consumption to promote human health. Comprehensive Reviews in Food Science and Food Safety. 2013.Needs sourceNo link

Check your full routine

One pair was the worked example.

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Open the interaction checker → Browse the research index