health guides
Quercetin
Quercetin belongs to a class of water-soluble plant pigments called flavonoids.
- Reliable and relatively consistent scientific data showing a substantial health benefit.
- Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
- For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.
Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.
For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.
This supplement has been used in connection with the following health conditions:
| Used for | Amount | Why |
|---|---|---|
Prostatitis | 1,000 mg daily |  [3 stars] Quercetin has anti-inflammatory and anti-oxidant effects and may reduce symptoms of chronic prostatitis. |
Athletic Performance and Post-Exercise Infection | 500 mg twice a day |  [2 stars] In one study, quercetin lowered the incidence of upper respiratory tract infections in athletes following intensive exercise.
|
Allergies and Sensitivities | Refer to label instructions |  [1 star] Test tube and animal studies have found some effects from natural anti-histamines such as the flavonoid quercetin, though no clinical research has shown whether these substances can specifically reduce allergic reactions. |
Asthma | Refer to label instructions | [1 star] Quercetin, a flavonoid found in many plants, has an inhibiting action on lipoxygenase, an enzyme that contributes to problems with asthma.
|
Atherosclerosis | Refer to label instructions | [1 star] Quercetin, a flavonoid, protects LDL cholesterol from damage. |
Cataracts | Refer to label instructions | [1 star] The flavonoid quercetin may help protect against cataracts by blocking sorbitol accumulation in the eye. |
Childhood Diseases | Refer to label instructions | [1 star] Quercetin is a flavonoid that has shown particularly strong anti-viral properties in the test tube. |
Gout | Refer to label instructions | [1 star] In test tube studies, quercetin, a flavonoid, has inhibited an enzyme involved in the development of gout. |
Hay Fever | Consult a qualified doctor | [1 star] Quercetin is an increasingly popular treatment for hay fever. |
Lymphedoema | Refer to label instructions | [1 star] In one study, the flavonoid quercetin corrected abnormal capillary permeability (leakiness), an effect that might improve oedema. |
Type 1 Diabetes | Refer to label instructions | [1 star] Quercetin has been found to improve blood sugar control and prevent complications of diabetes in animal research. |
Type 2 Diabetes | Refer to label instructions | [1 star] Quercetin has been found to improve glucose metabolism and reduce complications in animal models of type 2 diabetes. |
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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2024.
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