AOR Quercetin 500mg Capsules

AOR Quercetin 500mg Details

AOR Quercetin delivers 500 mg of pure quercetin per capsule — a plant-derived flavonoid antioxidant most-known for its role in supporting healthy immune response, seasonal allergy comfort, and cardiovascular wellness. Quercetin is found naturally in onions, apples, berries, and green tea, but supplementation provides therapeutic doses far higher than typical dietary intake. AOR's clean single-ingredient formulation: no fillers, no buffering agents, just quercetin in vegetarian capsules. Made in Canada by AOR — a practitioner-trusted Canadian brand.

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Quick Facts

Who AOR Quercetin Is For

• Adults dealing with seasonal allergies who want a natural option to support their allergy comfort routine
• People wanting daily antioxidant and flavonoid support — quercetin is one of the most-studied dietary flavonoids
• Adults focused on cardiovascular wellness who appreciate quercetin's role in supporting healthy blood vessel function
• Anyone interested in healthy immune response, especially during seasonal transitions
• Active people who want a recovery support tool — quercetin has been studied in athletes for inflammatory response support
• People wanting Canadian-made practitioner-trusted quality at a moderate price

Who this product is NOT for: If you take medications that quercetin can interact with (blood thinners, blood pressure medications, certain antibiotics, cyclosporine), talk to your healthcare practitioner first. If you have a kidney condition, consult your practitioner before using high-dose quercetin. If you want quercetin combined with bromelain (a digestive enzyme that may enhance absorption), look at a combination formula instead. If you mainly want acute seasonal allergy relief, an antihistamine might be the more direct tool — quercetin is a longer-game support nutrient, not a fast-acting relief option.

Vitamart's Take

AOR Quercetin is one of the cleaner quercetin supplements on our shelves — single-ingredient, no fillers, no buffering agents, just 500 mg of quercetin per capsule. Quercetin has earned its reputation: it's one of the most-studied dietary flavonoids, with research supporting its role in healthy immune response, seasonal allergy comfort, and cardiovascular function. The sensible choice for adults who specifically want quercetin without other ingredients added. If you want quercetin combined with bromelain (an enzyme that may enhance absorption) or with vitamin C for additional immune support, combination formulas exist. AOR is a respected Canadian brand known for thoughtful single-ingredient formulations at fair prices. For most adults using quercetin, taking it consistently for several weeks before allergy season starts produces better results than starting after symptoms appear.

How AOR Quercetin Compares

AOR Quercetin vs Quercetin + Bromelain Combination

AOR Quercetin (this product): Single-ingredient quercetin. Clean formulation without other added components.
Quercetin + Bromelain: Quercetin combined with bromelain (a pineapple enzyme that may enhance quercetin absorption). A fit if you want absorption support built in.

AOR Quercetin vs Antihistamines

AOR Quercetin (this product): Daily supportive use that builds over weeks. Supports the body's natural histamine response.
Antihistamines (OTC): Fast-acting acute relief during allergy symptoms. A different category entirely. Many adults use both — quercetin for ongoing daily support, antihistamines for acute symptom relief.

AOR Quercetin vs Vitamin C + Bioflavonoids

AOR Quercetin: Focused dose of quercetin for adults specifically wanting this flavonoid.
Vitamin C + Bioflavonoids: Includes quercetin and other flavonoids alongside vitamin C in lower doses. A fit if you want broader bioflavonoid coverage rather than concentrated quercetin.

What Is Quercetin?

Quercetin is a plant-derived flavonoid — a type of antioxidant compound found naturally in many fruits and vegetables. Here's what's known about it:

• Where it comes from in food: Onions (especially red onions), apples, berries, green tea, broccoli, kale, and capers contain meaningful amounts. Dietary intake from food is usually 5-40 mg daily — well below the 500 mg therapeutic dose used in research.
• What research supports: Quercetin is one of the most-studied dietary flavonoids, with research suggesting roles in immune response, seasonal allergy support, cardiovascular function, and antioxidant protection.
• Seasonal allergy use: Quercetin appears to support the body's natural histamine response, which is why it's popular for seasonal allergy comfort. Most adults notice support over 2-4 weeks of consistent use, not immediate relief.
• Why supplementation matters: Food sources provide modest amounts — not enough to reach the doses used in research. Supplementation provides concentrated, consistent intake.
• Safety profile: Quercetin has been used as a supplement for decades. Most adults tolerate doses up to 1,000 mg daily without issues.

How To Use

Adults: Take 1 capsule daily with food, or as directed by your healthcare practitioner. Taking with food (especially food containing some fat) helps absorption. For seasonal allergy support, start 2-4 weeks before your typical allergy season for best results.

Talk to a healthcare practitioner before use if you take blood thinners (warfarin, aspirin), blood pressure medications, certain antibiotics, cyclosporine, or chemotherapy drugs. Quercetin can interact with these medications. Also consult your practitioner if you have kidney disease or are pregnant or breastfeeding.

Frequently Asked Questions

Pairs Well With

• Vitamin C Supplements — the classic flavonoid pairing for immune support
• Immune Support Supplements — broader immune-support routine
• Seasonal Allergy Supplements — if seasonal allergies are your main concern
• Heart Health Supplements — cardiovascular wellness routine

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Compare Similar Products

• Vitamin C with Bioflavonoids — Combination immune-support formulas.
• Seasonal Allergy Support — The broader allergy-support category.
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• Antioxidant Supplements — Browse antioxidant options.

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Take 1 AOR Quercetin capsule twice daily with food, or as directed by a qualified health care practitioner.