Quercetin for Seasonal Allergic Rhinitis (Hay Fever)
Symptoms Studied
Seasonal allergy symptoms including sneezing, runny nose, nasal congestion, itchy eyes, and sleep disturbance during pollen season.
Research Hypothesis
Quercetin is a natural antihistamine and anti-inflammatory flavonoid that may stabilize mast cells and reduce allergic symptoms.
Intervention Tested
Quercetin Phytosome
200mg quercetin in bioavailable phytosome formulation, taken daily
Study Results
Before Treatment
Adults experiencing pollinosis (seasonal allergic rhinitis) symptoms during allergy season.
After Treatment
Significantly improved scores on allergy quality of life questionnaire including eye itching, sneezing, nasal discharge, and sleep disturbances compared to placebo.
Timeline to Improvement
Improvements observed over 4 weeks of daily supplementation
Side Effects
Minimal adverse effects reported. Well-tolerated throughout trial period.
Source
- Quercetin for Seasonal Allergic Rhinitis (Hay Fever)
Yamada S, et al. Eur Rev Med Pharmacol Sci. 2022;26(12):4331-4345
Conclusion
Quercetin supplementation effectively reduces seasonal allergy symptoms including sneezing, nasal discharge, eye itching, and sleep disturbance in hay fever sufferers.
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