Quercetin, Jarrow Formulas, 500mg, 100 Caps

Benefits

• May help support the body's antioxidant defences.
• May help relieve the symptoms of seasonal allergies such as sneezing and itchy eyes.
• May help support a healthy response to environmental irritants.
• May help support healthy circulation.
• Helps protect cells from free radical damage.
• May help support general wellbeing as part of a healthy diet.

What people commonly use it for

• Seasonal sneezing and itchy eyes (Some clinical studies suggest it may reduce mild symptoms)
• Feeling run down in cooler months (Early research only)
• Exercise recovery and stamina (Some clinical studies suggest a small benefit)
• Everyday oxidative stress (Good laboratory evidence; human studies are still developing)
• Circulation support (Some clinical studies suggest benefits at higher doses)

Suggested to use alongside

• Vitamin C: Often combined with quercetin in seasonal wellness formulas
• Zinc: Essential mineral for normal immune function
• Bromelain: Enzyme commonly paired with quercetin in formulas

Quercetin is a flavonol, a subclass of flavonoids. In food it mostly occurs bound to sugars as glycosides, such as quercetin glucoside in onions. Enzymes and gut bacteria remove the sugar, and the free quercetin is then absorbed and quickly converted in the liver to metabolites that circulate in the blood.

Antioxidant action. Quercetin can donate electrons to neutralise reactive oxygen species. It can also increase the activity of the body's own antioxidant systems by influencing pathways such as Nrf2.

Allergy response. In laboratory studies, quercetin stabilises mast cells, which release histamine when triggered. This is the basis for its use for mild seasonal symptoms. Human evidence is mixed, and Examine.com describes the findings as preliminary.

Absorption. Plain quercetin has low bioavailability because it dissolves poorly in water. Newer forms such as quercetin phytosome, quercetin dihydrate with vitamin C, and enzymatically modified isoquercetin have been developed to improve this. Taking quercetin with a meal containing fat can also help.

Typical dietary intake is around 10 to 30 mg per day, while supplements generally provide much more (NIH-referenced reviews on flavonoids).

• Pack size: 100 Caps
• Strength: 500mg
• Form: Capsules

Support your wellness journey with Jarrow Formulas Quercetin 500mg, a high-quality dietary supplement designed to promote antioxidant activity and immune health.

• Vegetarian-Friendly: Made with a vegetarian formula to meet diverse dietary needs.

• Superior Quality: Trusted brand known for using scientifically researched ingredients.
• No Common Allergens: Free of wheat, gluten, soybeans, dairy, egg, fish, shellfish, peanuts, and tree nuts.

How to Use

Enhance your health regimen with Jarrow Formulas Quercetin 500mg, the supplement that supports your body from the inside out.

Always read the label and follow the directions for use. This information is general in nature and not medical advice. If symptoms persist, talk to your health professional.

Supplier ref: Jarrow Formulas Quercetin 500Mg Vegetarian Dietary Supplement- 100 Capsules

What is quercetin good for?

Quercetin is a plant antioxidant often used to support healthy responses to seasonal allergens. It is also used for general antioxidant support.

Which foods contain quercetin?

Onions, capers, apples, berries, kale and green tea are good sources. Red onions are especially rich.

Why is quercetin sold with vitamin C or bromelain?

Vitamin C may help recycle quercetin and bromelain may help its uptake. Combinations are common, though evidence is limited.

When should I take quercetin?

Take it with food, since it is better absorbed with some fat. Splitting the dose across the day is common.

How long does quercetin take to work?

For seasonal use, many people start a week or two before pollen season. Effects are gradual.

Can I take quercetin every day?

Short- to medium-term use is common. Follow the label and ask your health professional for longer use.

Quercetin may interact with some medicines, including blood thinners, certain antibiotics and drugs processed by the liver. Speak to your health professional if you are pregnant, breastfeeding or on regular medication.

Jarrow Formulas is an American brand known for research-based probiotics and nutrients since 1977.

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