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Traditional Digestive HealthHerbal Supplement400 mg Per CapsuleTotal Wellness For Mind Body & HomeUnsurpassed Purity & Potency Science-Backed Quality Since 1969Promote gastrointestinal health with Swanson Oregon Grape Root! Oregon grape root was a favorite of Native Americans in the northwest before European colonists arrived. Ironically the fruit of this evergreen shrub are not grapes. Alkaloids including berberine berbamine canadine and hydrastine may account for the activity of Oregon grape. Each capsule delivers 400 mg of Oregon grape root.