Quercetin

Quercetin As An Antioxidant Did you know that quercetin is the most abundant and also one of the most extensively studied flavonoids? Quercetin rich foods include; fruits, vegetables, grains, tea, and wine, and is a powerful antioxidant compound, with proven anti-carcinogenic, anti-inflammatory, and antiviral activities to boot! Because of this, quercetin has been used for everything from boosting immunity, to improving exercise performance, lowering blood pressure, and helping support heart and cognitive health. Read more >

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  1. Quercetin W/Bromelain - 240 V-Caps

    QUERCETIN WITH BROMELAIN FROM NOW FOODS NON-CITRUS SOURCE. Now foods Quercetin with Bromelain supplies optimal levels of this allergy-inhibiting flavonoid. Containing 400 mg of Quercetin per capsule plus 82.5 mg of Bromelain (198 GDU) for enhanced absorption. This combination may be helpful for treating seasonal allergies and supporting optimal immune function. A great safe and natural altern...

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  2. Quercetin Bioflavonoid Complex 250mg - 90 V-Caps

    250MG QUERCETIN BIOFLAVONOID COMPLEX FROM NEW ROOTS. New Roots Herbal's Quercetin appears to have many beneficial effects on human health, including cardiovascular protection, anti-ulcer effects, anti-allergy activity, cataract prevention, antiviral activity, and anti-inflammatory effects. Mechanisms of action: flavonoids, as a rule, are antioxidants, and a number of quercetin's effects appea...

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  3. Quercetin Bioflavonoids 500mg - 90 V-Caps - New Roots

    500MG QUERCETIN BIOFLAVONOIDS 98% FROM NEW ROOTS. New Roots Herbal's Quercetin appears to have many beneficial effects on human health, including cardiovascular protection, anti-ulcer effects, anti-allergy activity, cataract prevention, antiviral activity, and anti-inflammatory effects. Mechanisms of action: flavonoids, as a rule, are antioxidants, and a number of quercetin's effects appear to...

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  4. Quercetin1200 - 60 V-Caps

    Nutridom Quercetin delivers 600mg of this natural bioflavonoid per serving, offering potent antioxidant support to help neutralize free radicals and protect cellular health. It also supports cardiovascular wellness, healthy blood pressure, and immune function, while providing anti-inflammatory benefits and aiding seasonal allergy relief. Formulated in vegetable-based capsules, Nutridom Querceti...

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  5. Quercetin W/ Bromelain 500mg - 120 Caplets

    QUERCETIN FROM ORGANIKA 400 MG PLUS BROMELAIN DERIVED FROM A CITRUS SOURCE. Say good-bye to allergies with Quercetin plus Bromelain form Organika. Containing a 400 mg potency of the important flavonoid Quercetin plus, 100 mg of Bromelain. Best known for their anti-inflammatory properties, Quercetin with bromelain has the unique ability to help soothe inflamed nasal passages due to allergies an...

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  6. Quercetin 15x - 60 Liquid Caps

    Quercetin 15x from Platinum Naturals features citrus-free Quercetin from a plant named sophora japonica. Quercetin is a bioflavonoid and naturally potent antioxidant, that in combination with Vitamin C helps support the immune system and help reduce symptoms of seasonal allergies. Laboratory studies have shown that when Quercetin is suspended in a healthy oil the body can sustain greater circul...

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  7. Quercetin 15x - 120 Liquid Caps

    Quercetin is a bioflavonoid and naturally potent antioxidant, that in combination with Vitamin C helps support the immune system and help reduce symptoms of seasonal allergies. Quercetin possesses antimicrobial properties that are effective against most types of bacteria and viruses. Quercetin has bacteriostatic activities that damage cell walls and membranes of bacteria. Its antiviral activiti...

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  8. Quercetin 500mg - 120 V-Caps

    Quercetin is a bioflavonoid that is found in many vegetables, fruits, and herbs and is needed for assisting in the absorption of Vitamin C. Promise's Quercetin 500mg is an important antioxidant supplement that protects against oxidative stress and is often used in herbal medicine as a capillary and blood vessel protectant. Promise Quercetin comes in a an easy to swallow veggie capsule and may ...

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  9. Quercetin 500mg - 60 V-Caps

    Quercetin, a flavonoid found in various plant pigments, is known as a highly absorbable antioxidant and bioflavanoid with anti-inflammatory benefits. It boosts immune function by protecting cells from free radical damage and inhibits certain chemical pathways that cause inflammation. Prairie Naturals Quercetin contains 500mg per capsule that is vegan-friendly, gluten-free, non-GMO. Research sho...

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  10. Quercetin 500mg - 120 V-Caps + BONUS

    Quercetin, a flavonoid found in various plant pigments, is known as a highly absorbable antioxidant and bioflavanoid with anti-inflammatory benefits. It boosts immune function by protecting cells from free radical damage and inhibits certain chemical pathways that cause inflammation. Prairie Naturals Quercetin contains 500mg per capsule that is vegan-friendly, gluten-free, non-GMO. Research sho...

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  11. Bioactive Quercetin EMIQ 50mg - 60 V-Caps

    ALLEVIATE YOUR ALLERGIES WITH BIOACTIVE QUERCETIN EMIQ Natural Factors Bioactive Quercetin EMIQ is a highly bioavailable form of quercetin (a flavonoid that exerts significant anti-allergy effects). It is also an antioxidant and may offer benefits in protecting against cardiovascular disease. Unfortunately, until now quercetin has not shown much clinical effect because of poor absorption but w...

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  12. Quercetin W/ Bromelain 500mg - 60 Caplets

    QUERCETIN FROM ORGANIKA 400 MG PLUS BROMELAIN DERIVED FROM A CITRUS SOURCE. Say good-bye to allergies with Quercetin plus Bromelain form Organika. Containing a 400 mg potency of the important flavonoid Quercetin plus, 100 mg of Bromelain. Best known for their anti-inflammatory properties, Quercetin with bromelain has the unique ability to help soothe inflamed nasal passages due to allergies an...

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  13. Liposomal Quercetin (Tangerine) - 450ml

    We need antioxidant support for various things like healthy immune function, protecting against inflammation, and reducing seasonal allergy symptoms to name a few. Quercetin, a bioflavonoid found in plants, is an antioxidant that may help protect our cells and reduce oxidative damage caused by free radicals. Supplemental quercetin often has poor solubility and absorption, which CanPrev has over...

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  14. Quercetin 500mg - 120 V-Caps

    Heal + Co’s Quercetin is a powerful plant-based flavonoid rich in antioxidants, sourced naturally from the flower of the sophora japonica tree. Each capsule contains 500mg of the highest-grade quercetin at 95% purity ensuring maximum absorption and bioavailability. Quercein has been used for centuries as a traditional herbal medicine, quercetin is a known source of powerful antioxidants as well...

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Quercetin Benefits

Did you know that quercetin has many health benefits and is the most abundant and also one of the most extensively studied flavonoids? Quercetin rich foods include; fruits, vegetables, grains, tea, and wine, and is a powerful antioxidant compound, with proven anti-carcinogenic, anti-inflammatory, and antiviral activities to boot! Because of this, quercetin has been used for everything from boosting immunity, to improving exercise performance, lowering blood pressure, and helping support heart and cognitive health.

Quercetin is also extremely effective at inhibiting the release of histamine, decreasing pro-inflammatory cytokines, leukotrienes creation, and suppressing interleukin IL-4 production, all of which result in naturally relieving seasonal allergy symptoms, allergic rhinitis, and bronchial asthma responses. Interestingly, because quercetin enhances blood flow, it is also frequently added to sports nutrition supplements to improve athletic performance and endurance. More specifically, quercetin has been shown to provide significant benefits in human endurance exercise capacity (VO2 max) and endurance exercise performance.

Benefits Of Quercetin

Who Benefits From Quercetin?

More often than not, quercetin is recommended for immune system support and as a treatment to prevent, mitigate and relieve allergy symptoms. That said, quercetin is also frequently recommended to improve energy and endurance in those who train heavily, as well as to help protect skin health for those prone to inflammatory skin reactions/conditions, as well as to help modulate chronic and acute forms of inflammation.

Quercetin Supplement Benefits

Potencies

Quercetin supplements are usually sold in 50 to 500 mg potency, and they are typically recommended in a dosage range of 500–1,000 mg daily.

Forms

Quercetin supplements come in a wide range of different forms. There are water-soluble forms of quercetin available which boast enhanced absorption such as lipo-quercetin, a sustained-released liposomal delivery system, hesperidin-methyl-chalcone (HMC), and quercetin-chalcone. There is also a LipoMicel Matrix quercetin that features a liquid micelle matrix technology that disperses quercetin into tiny micro-droplets.

Formats

Quercetin can be purchased as a dietary supplement in several forms including, capsules and powders.

Final Thoughts

Quercetin has a low bioavailability, so is hard to absorb and use by the body. This is why it’s important to look for supplements that include other compounds such as, vitamin C or bromelain (a digestive enzyme) to help enhance absorption. Quercetin is also more potent and absorbable when it’s combined with other flavonoids, such as resveratrol, genistein, and catechins, so you should also be on the lookout for these on the product label.

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