Quercetin

DRI (RDA or AI for Adults)

None

Adult Maintenance - Therapeutic Range

100 -1,000 mg

Major Sources

Apples, berries, green and black tea, onions, red wine.

Non-Therapeutic Importance

None

Possible Therapeutic Applications

CONSULT WITH A HEALTH PROFESSIONAL FIRST: Research shows that quercetin has antioxidant, anti-inflammatory, antiviral, immunomodulatory, anticancer, and gastroprotective properties. It may also have anti-allergy effects, and activity in preventing secondary complications of diabetes (cataracts, retinopathy, neuropathy, and nephropathy). Supplementation may prevent, or be helpful with, the following conditions:

Allergies
Aging
Asthma
Atherosclerosis
Cancer
Capillary Fragility
Diabetes (cataracts, retinopathy, neuropathy, and nephropathy)
Edema
Gout
Inflammation (including bursitis)
Peptic Ulcers
Prostatitis