Supplements / Exploratory
Quercetin
Best for: Immune support, Performance
Quercetin is rated limited evidence (tier C on our evidence scale). 500–1000 mg daily. Morning with food.
Sources last reviewed
When and how to take Quercetin
- Dose
- 500–1000 mg daily.
- Timing
- Morning with food.
- Review
- Reassess after 4 to 8 weeks.
- Forms
- quercetin phytosome, quercetin + bromelain
What Quercetin is used for
- Allergy and exercise-recovery signals in small trials.
- Mast-cell-stabilising effect is well shown in vitro (outperformed cromolyn on cultured human mast cells, Weng 2012) but human clinical data are limited to small open-label pilots — mechanistic, not established for histamine intolerance.
- Bioavailability is the main barrier.
When Almavivo suggests Quercetin
- If you flagged a possible histamine pattern, where quercetin is sometimes tried for its mast-cell-stabilising effect: studied for in-vitro / small open-label mast-cell stabilisation (exploratory — not established for histamine intolerance).
What to look for when buying Quercetin
- Preferred third-party verification: Third-party tested (COA).
- Common contamination risks: Mislabeling / identity.
- Form: Bioavailability is poor; phytosome (Quercetin Phytosome) or with bromelain improves absorption.
Where to get it
We’re building a curated list of third-party-tested products for Quercetin. Each one will meet our quality bar (preferred certifications, contamination screens) and carry an explicit affiliate disclosure.
Your experience
If you’ve tried Quercetin, you can log how it went. This stays on your device — only you see it.
We frame these as personal experience, not medical claims. Self-reported subjective outcomes are influenced by placebo, regression to the mean, and parallel lifestyle changes. We’ll never present ratings as equivalent to RCT evidence.
Research sources for Quercetin
- Quercetin clinical effects review (reviewed 2026-04-30)
Related supplements
Almavivo is for education only, not medical advice. Check with a doctor or pharmacist before starting a supplement, especially if you take prescription medicine, are pregnant or breastfeeding, or have a long-term health condition.