Relationship: Rhinitis, Allergic and quercetin

Evidence supporting the use of: Quercetin
For the health condition: Rhinitis, Allergic

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Quercetin is a flavonoid found in many fruits, vegetables, and grains, and it has been investigated for its potential role in supporting or treating allergic rhinitis. The rationale for its use is primarily based on its anti-inflammatory and antioxidant properties, as well as its ability to modulate immune responses. Quercetin has been shown in several in vitro and animal studies to inhibit the release of histamine and other inflammatory mediators from mast cells and basophils, which are key players in the allergic response that leads to rhinitis symptoms.

Some small clinical studies and pilot trials in humans have reported beneficial effects of quercetin supplementation on symptoms of allergic rhinitis, such as nasal congestion, sneezing, and itching. For example, a few randomized controlled trials have indicated that quercetin may reduce symptom severity and improve quality of life in patients with seasonal allergies, likely due to its mast cell-stabilizing effects and inhibition of inflammatory cytokines. However, the number of high-quality human studies remains limited, and results are not entirely consistent across trials.

Despite promising preclinical evidence and some supportive clinical data, the overall strength of evidence is moderate at best, with a need for larger, well-designed randomized controlled trials to confirm efficacy and determine optimal dosing. As such, quercetin is sometimes used as an adjunctive, natural approach for allergic rhinitis, but it should not replace standard therapies. Individuals should consult healthcare professionals before starting supplementation, especially if they are on other medications.

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Other health conditions supported by quercetin

Aging (prevention)
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Arteriosclerosis
Arthritis
Asthma
Autoimmune Disorders
Bladder (ulcerated)
Blood Clots (prevention of)
Bruises (healing)
Cancer (natural therapy for)
Cancer (prevention)
Capillary Weakness
Cardiovascular Disease
Cartilage Damage
Cataracts
Chemotherapy (reducing side effects)
Cholesterol (high)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Cirrhosis of the Liver
Cold Sores
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colitis
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (sinus)
Conjunctivitis
Contagious Diseases
Cough (damp)
Crohn's Disease
Cystic Fibrosis
Cytomealovirus
Dementia
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Edema
Fatigue
Free Radical Damage
Gastritis
Gingivitis
Hair (loss or thinning)
Hypertension
Inflammation
Influenza
Irritable Bowel Syndrome
Liver Detoxification
Lupus
Memory and Brain Function
Multiple Sclerosis
Osteoporosis
Parkinson's Disease
Peripheral Neuropathy
Prostatitis
Psoriasis
Rhinitis
Rhinitis, Allergic
Sinus Infection
Skin (infections)
Sneezing
Triglycerides (high)
Ulcers

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Evidence supporting the use of: Quercetin
For the health condition: Rhinitis, Allergic

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Synopsis

Other ingredients used for Rhinitis, Allergic

Other health conditions supported by quercetin

Products containing quercetin

Health Concerns

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Evidence supporting the use of: QuercetinFor the health condition: Rhinitis, Allergic

Table of Contents

Synopsis

Other ingredients used for Rhinitis, Allergic

Other health conditions supported by quercetin

Products containing quercetin

Evidence supporting the use of: Quercetin
For the health condition: Rhinitis, Allergic