Mental Health Quercetin - Information and benefits
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Quercetin
Summary
Quercetin is in a group of plant compounds called bioflavanoids. Bioflavonoids are the pigments that give the color to fruits and vegetables. Quercetin acts as a potent antioxidant. It is protects against heart disease by preventing free radicals from damaging cells and blood vessels.
Quercetin acts as an antihistamine and anti-inflammatory and is useful in preventing asthma and allergic reactions. It also prevents the conversion of glucose to sorbitol, protecting the eyes of those with diabetes. Through this same mechanism, quercetin also protects the nerves and kidneys. No toxicity has been identified with quercetin. If taken in large doses, however, it can cause the blood pressure to decrease.
Quercetin potentiates the effects of vitamin C and is frequently taken with this vitamin. It is available in powder and capsule form. The recommended dose is 200 - 400 milligrams three times a day. It is best to take it before meals.
Quercetin can also be found mixed with other bioflavonoids, with 1000-2000 milligrams per day being the recommended daily dose. High concentrations can be found in apples, grapefruit, oranges, black currents, strawberries, tomatoes, onions, Brussel sprouts, kale, parsley, and sage. Tea and red wine also contain quercetin.