Quercetin

Quercetin 500mg

Quercetin is a naturally occurring flavonoid — a class of polyphenolic plant compounds — found abundantly in onions, apples, berries, capers, and many other fruits, vegetables, and herbs. It is one of the most widely distributed and extensively researched dietary flavonoids in nutritional science.

Each capsule provides 500mg of Quercetin in a vegan capsule.

About Quercetin

Quercetin belongs to the flavonol subclass of flavonoids and is characterised by its potent antioxidant activity — the ability to neutralise free radicals and support the body’s natural antioxidant defence systems. It is naturally present in many of the most antioxidant-rich foods in the human diet.

Quercetin has been the subject of extensive scientific research over several decades, particularly in the areas of immune wellness, cardiovascular wellness, and metabolic health. It is one of the most studied flavonoids in nutritional biochemistry.

Naturally Occurring Properties

• Flavonoid antioxidant — one of the most potent naturally occurring dietary antioxidants; neutralises free radicals and supports the body’s natural antioxidant enzyme systems
• Zinc ionophore activity — Quercetin has been studied for its ability to facilitate the transport of zinc ions across cell membranes, a property that has generated significant scientific interest
• Flavonol structure — the flavonol backbone gives Quercetin its characteristic broad-spectrum antioxidant and anti-inflammatory properties in nutritional research
• Bioavailability — Quercetin is fat-soluble; absorption is enhanced when taken with food containing healthy fats, or when combined with Bromelain or Vitamin C

Traditional & Nutritional Use

Immune & Respiratory Wellness

Quercetin is one of the most widely used flavonoids in nutritional practice for immune and respiratory wellness. Its antioxidant and anti-inflammatory properties have made it a popular inclusion in immune wellness formulas, particularly in combination with Zinc and Vitamin C.

Cardiovascular & Circulatory Wellness

Quercetin has a well-established presence in cardiovascular wellness research. It is a common inclusion in nutritional formulas for heart and circulatory wellness, and is found naturally in many foods associated with cardiovascular health in epidemiological research.

Metabolic Wellness

Quercetin is widely studied in the context of metabolic wellness and is a common inclusion in nutritional formulas for metabolic support.

Histamine & Allergy Wellness

Quercetin is one of the most widely used flavonoids in nutritional practice for histamine and allergy wellness. It is a natural flavonoid with well-documented mast cell-stabilising properties in in-vitro research, and is commonly used in herbal and nutritional practice for seasonal and environmental wellness.

How to Use

Take 1–2 capsules daily with food, or as directed by your healthcare practitioner. Best absorbed when taken with a meal containing healthy fats. Can be combined with Vitamin C or Bromelain to support absorption.

Precautions

Consult your healthcare practitioner before use if you are pregnant or breastfeeding, taking blood-thinning medications, antibiotics, or immunosuppressants. High doses may interact with certain medications — practitioner guidance is recommended for long-term use above standard doses.

Stack This With

• L-OptiZinc — zinc to complement Quercetin’s ionophore activity
• Sodium Ascorbate (Vitamin C) — enhances Quercetin absorption and antioxidant activity
• Gumpii Extract — foundational botanical base

Related Wellness Guides

• Wellness Hub — explore all herbal guides

Content provided for informational purposes only. Not medical advice. Not intended to diagnose, treat, or cure any condition. Consult your healthcare practitioner.