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Immune HealthMineral SupplementBoosts Antioxidant ActivityMaintains Eye Prostate and Liver HealthSupports Immune HealthScience-Backed Quality Since 1969As a crucial component of one of the body's primary antioxidant enzymes Swanson Zinc Gluconate delivers valuable nutritional support for the immune system prostate eyes and more. Each tablet delivers 30 mg of zinc as a great way to replenish your body's stores of this essential mineral. Gluconate form supports optimal absorption.