Quercetin

Quercetin [∞]

Quercetin

Alternate Names: 3,3',4',5,7-Pentahydroxyflavone, Flavonoid

Chart of Uses:

Use	Description	Index
Antioxidant Support	Protects cells from oxidative stress by neutralizing free radicals
Anti-Inflammatory	Reduces inflammation, beneficial for conditions like arthritis and allergies
Cardiovascular Health	May help improve blood vessel function, reduce blood pressure, and reduce cholesterol	[1][2]
Immune System Support	Boosts immune response and may reduce the severity of cold symptoms
Allergies	Helps reduce symptoms of allergies such as runny nose, sneezing, and itchy eyes

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Warnings:

1. Blood Thinning: Quercetin may have mild blood-thinning effects, which could enhance the effects of anticoagulant medications.
2. Pregnancy and Breastfeeding: Insufficient data on its safety during pregnancy or breastfeeding. Consult a healthcare provider before use.
3. Drug Interactions: May interact with certain medications like antibiotics or chemotherapeutic agents, so consult a healthcare provider before use if on prescription drugs.
4. Gastrointestinal Issues: May cause mild gastrointestinal discomfort, especially when taken in high doses.

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Active Compounds:

1. Flavonoid: Quercetin is a type of flavonoid with strong antioxidant and anti-inflammatory properties.
2. Antioxidants: Quercetin’s antioxidant activity helps prevent cellular damage from free radicals.
3. Catechins: Related compounds that contribute to the anti-inflammatory and antioxidant properties of quercetin.

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Natural Sources:

1. Fruits:
   • Apples (Malus domestica): Particularly high in quercetin, especially in the skin.
   • Berries (e.g., blueberries, cranberries, blackberries): Rich in quercetin and other antioxidants.
   • Grapes (Vitis vinifera): Contains quercetin, especially in the skin and seeds.
2. Vegetables:
   • Onions (Allium cepa): One of the best plant sources of quercetin, especially red onions.
   • Kale (Brassica oleracea): Contains a moderate amount of quercetin.
   • Broccoli (Brassica oleracea): A good source of quercetin when cooked.
3. Herbs and Spices:
   • Parsley (Petroselinum crispum): High in quercetin, particularly in the fresh herb.
   • Capers (Capparis spinosa): An excellent source of quercetin, especially when dried.
4. Tea:
   • Green tea (Camellia sinensis): Contains quercetin as part of its polyphenolic content.

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