Quercetin

Overview

A flavonoid some people try for histamine-reactive fog.

Mechanisms it may act on

• Histamine-reactive Plausible

Where the estimate comes from

• From studies (prior): 2.0
• From Reddit reports: 1.6
• From investigators here: 0.0
• From tests: 0.0

Studies

• Quercetins efficacy on bone and inflammatory markers, body composition, and physical function in postmenopausal women.
  2025 · Journal of bone and mineral metabolism · n=33 · Positive · PubMed 40053115
• Effects of intermittent senolytic therapy on bone metabolism in postmenopausal women: a phase 2 randomized controlled trial.
  2024 · Nature medicine · n=60 · Null · PubMed 38956196
• Acute Ingestion of a Mixed Flavonoid and Caffeine Supplement Increases Energy Expenditure and Fat Oxidation in Adult Women: A Randomized, Crossover Clinical Trial.
  2019 · Nutrients · n=19 · Positive · PubMed 31694152
• Bone health nutraceuticals alter microarray mRNA gene expression: A randomized, parallel, open-label clinical study.
  2016 · Phytomedicine : international journal of phytotherapy and phytopharmacology · n=? · · PubMed 26902403
• Efficacy of an orally administered combination of hyaluronic acid, chondroitin sulfate, curcumin and quercetin for the prevention of recurrent urinary tract infections in postmenopausal women.
  2016 · European journal of obstetrics, gynecology, and reproductive biology · n=145 · Positive · PubMed 27838537

Reddit reports

Coded from public Reddit posts. People who post tend to have strong results either way.

• Helped: 4
• Partly: 4
• No change: 0
• Worse: 0

How people usually try it

Take with food. Pair with vitamin C if your product suggests it.

Typical dose: 500 mg once or twice daily