← All Ingredients Antioxidant

Quercetin

Also known as: quercetin dihydrate

📊

Effective Dosage

500-1000mg daily

✓ What the Science Says

Antioxidant flavonoid. May have anti-inflammatory effects. Limited clinical evidence.

✗ What It Doesn't Do

NOT proven for immune boosting despite COVID-era marketing.

Evidence-Based Benefits

Antioxidant flavonoid. May have anti-inflammatory effects. Limited clinical evidence.

Weak Evidence

Effective at: 500-1000mg daily

Source: Examine.com

Absorption & Bioavailability

Poor - improved with vitamin C or bromelain

Red Flags to Watch For

🚩 COVID prevention/treatment claims
🚩 Dramatic immune claims

Research Sources

Examine.com

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-02-04