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Immune HealthBody Preferred FormMineral SupplementSupports Immune Health and Daily WellnessEssential Mineral and Powerful AntioxidantScience-Backed Quality Since 1969Give your immune system some serious backup with Swanson Extra Strength Zinc Picolinate. Delivering a powerful 50 mg in each single-serving capsule this body-preferred form of zinc is more readily absorbed within the body and provides the nutrition you need for a strong immune response.