Hermetica Superfood Encyclopedia
The Short Answer
A natural plant pigment that acts like an antihistamine to relieve allergy symptoms and helps reduce inflammation throughout the body.
CategoryExtract & Compound
GroupCompound
Evidence LevelModerate
Synergy Pairings4
Health Benefits
Scavenges free radicals, reducing oxidative stress and protecting cellular structures.
Inhibits inflammatory enzymes and cytokines, promoting joint comfort and reducing chronic inflammation.
Enhances immune system responsiveness and reduces histamine release, supporting allergy relief.
Improves endothelial function, lowers blood pressure, and reduces LDL cholesterol, promoting cardiovascular health.
Supports insulin signaling pathways and glucose metabolism, aiding blood sugar regulation.
Protects neurons from oxidative insults and supports cognitive longevity
Exhibits antiproliferative activity, contributing to protection against cancer cell formation.
Origin & History
Quercetin is a prominent flavonoid compound, primarily extracted from red and yellow onion varieties (Allium cepa), cultivated globally in temperate regions including Europe, Asia, and North America. Particularly concentrated in the outer layers of the bulb, it is highly valued in functional nutrition for its potent antioxidant, anti-inflammatory, and immune-modulating properties.
“Onions, a rich source of quercetin, have been widely used in European folk medicine and Traditional Chinese Medicine for centuries. They were valued for enhancing circulation, clearing congestion, and strengthening the immune system, with quercetin-rich preparations historically employed for inflammation, colds, and detoxification.”Traditional Medicine
Scientific Research
Clinical trials demonstrate quercetin’s efficacy in reducing blood pressure and improving vascular reactivity. Human and animal studies confirm its anti-inflammatory effects via suppression of NF-κB and COX pathways, with research also supporting its role in modulating immune responses and reducing allergy symptoms.
Preparation & Dosage
Whole Onions
Consume raw or cooked, particularly red and yellow varieties, for dietary intake.
Extracts
000 mg daily for targeted support
Standardized quercetin extracts at 500–1,.
Capsules
Offer convenient dosing with bioavailability-enhanced forms (e.g., quercetin phytosome).
Powders
Added to juices or wellness drinks for systemic antioxidant support.
Nutritional Profile
- Flavonoids: Quercetin is a prominent antioxidant flavonol with systemic protective effects.
- Polyphenols: Provide cardiovascular, neuroprotective, and metabolic support.
- Sulfur Compounds: Present in onions, synergize with quercetin to enhance detoxification and immune modulation.
- Trace Minerals: Includes potassium and magnesium, contributing to metabolic and vascular health.
Synergy Stack
Hermetica Formulation Heuristic
Polyphenol/antioxidant base
Cardio & Circulation | Immune & Inflammation
Frequently Asked Questions
What is quercetin?
Quercetin is a powerful plant-based antioxidant, known as a flavonoid, found in foods like onions, apples, and capers. It is widely used to support a healthy immune response, reduce inflammation, and manage seasonal allergy symptoms.
How much quercetin is safe to take daily?
A typical daily dose of quercetin is 500-1000 mg, often split into two servings. While generally safe, high doses may cause headaches or stomach upset. It's best to consult a healthcare professional, especially if you have kidney issues or take other medications.
How does quercetin help with allergies?
Quercetin acts as a natural antihistamine by stabilizing mast cells, which prevents them from releasing histamine—the compound that causes allergy symptoms like sneezing and itching. This helps calm the body's overactive response to allergens like pollen.
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