Quercetin, a flavonol, is a plant derived flavonoid found in fruits, vegetables, leaves and grains.
It also may be used as an ingredient in supplements, beverages or foods.
Name:Sophora Japonica extract
Latin Name: Sophora japonica L.
Plant original: Sophora japonica L
Part:Sophora japonica L flower
Active Ingredient ：Quercetin
1> Quercetin may expel phlegm and arrest coughing, it can also be used as anti-asthmatic.
2>Quercetin has anticancer activity, inhibits PI3-kinase activity and slightly inhibits PIP Kinase activity, reduces cancer cell growth via type II estrogen receptors.
3>Quercetin may inhibit histamine release from basophils and mast cells.
4> Quercetin may control the spread of certain viruses within the body.
5> Quercetin may help reduce tissue destruction.
6> Quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis.
1>Quercetin has a good expectorant, cough, and some asthma, for the treatment of chronic bronchitis.
2>There are lower blood pressure, increased capillary resistance, reduce capillary fragility, lowering blood pressure, expansion of coronary artery, increase coronary blood flow and so the role of adjuvant therapy for patients with coronary heart disease and high blood pressure
Although considered safe, sometimes quercetin can cause headaches or an upset stomach, and there had been some reports of kidney damage at doses greater than 1g/day.17 However, Memorial SloanKettering Cancer Center notes that no adverse effects in humans have been reported taking doses as high as 4g/day.18 Pregnant or nursing women should always consult with their healthcare provider prior to taking any supplement.
Although there are no widely recognized standard dosage recommendations for quercetin, intakes of as high as 100-1000mg per day, consumed in 2-3 divided doses have been used with no apparent adverse side effects.
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