Quercetin Benefits, Dosage & Side Effects Supplement Information and Usage Guide

Quercetin is a flavonoid that acts as an antioxidant and anti-inflammatory agent, supporting immune function and protecting cells from damage.

Quercetin is a plant flavonoid found in fruits, vegetables, and tea. It acts as an antioxidant and anti-inflammatory compound.

Quercetin supports immune health, respiratory function, and may help stabilize mast cells that release histamines. It is often combined with bromelain or vitamin C for enhanced effect.

Quercetin is used for allergies, immunity, and oxidative stress. It is generally safe, though high doses can cause mild headaches or tingling in some users.

Other names & forms of Quercetin supplement : quercetin dihydrate, quercetin supplement, flavonoid antioxidant

Benefits

Quercetin is a flavonoid found in many fruits and vegetables that exhibits strong antioxidant and anti-inflammatory properties by inhibiting pro-inflammatory enzymes and scavenging free radicals.

• Helps support Immunity by modulating immune cell activity and reducing histamine release.
• Contributes to Heart Health by improving endothelial function and reducing LDL oxidation.
• May promote Blood Flow & Circulation by enhancing nitric oxide availability and vasodilation.
• Provides Anti-Aging benefits through its potent free radical scavenging activity.

Dosage

The dosage of Quercetin supplement can vary based on personal requirements and recommendations:

• Antioxidant and immune support: 250–1000 mg/day of Quercetin, often divided into 2–3 doses.
• Absorption: Enhanced with bromelain or vitamin C; best taken with food.
• Usage: Seasonal allergy support, inflammation, and viral protocols.
• Recommendation: Use consistently for 4–8 weeks for best results.

Side Effects

Quercetin is a flavonoid with antioxidant and anti-inflammatory properties, but mild effects can occur as your system balances. Watch for:

• Possible headache or dizziness during initial use
• Mild gastrointestinal upset—nausea or stomach cramps—especially on an empty stomach
• Occasional skin rash or itching—in sensitive individuals
• Rare kidney discomfort with high-dose long-term use
• Temporary mild flushing or warmth sensation

Interactions

Possible interactions include:

• Anticoagulant and antiplatelet agents: Quercetin’s platelet-inhibiting effects may add to warfarin or supplements like Garlic, raising bleeding risk—monitor INR.
• Antihistamines: Its mast cell–stabilizing properties could potentiate effects of loratadine; monitor for increased dryness or drowsiness.
• Cytochrome P450 substrates: Quercetin can inhibit CYP3A4, potentially increasing levels of drugs like statins or CoQ10; dose adjustments may be needed.

Precautions

Before supplementing with Quercetin, confirm none of the following apply to you. If they do, consult your healthcare provider:

• Individuals on antibiotics (e.g., fluoroquinolones): Quercetin may interfere with absorption; separate doses by a few hours
• People with kidney disease: Monitor renal function if used long term at high doses
• Those on blood-thinning medications: Potential additive anticoagulant effects; monitor clotting parameters
• Pregnant or breastfeeding women: Limited safety data; use under professional guidance
• Patients scheduled for surgery: Discontinue at least two weeks prior—possible interactions with anesthesia and bleeding risk

Studies

This article was originally published on Stackbb.com, your trusted source for science-based supplement guides.