Our cells consume nutrients and produce energy, but that process can lead to byproducts called free radicals, highly reactive chemicals that must be removed. Free radicals damage cells and tissues and can lead to premature aging. Antioxidants remove these toxins and there’s no better antioxidant than glutathione. Vitamin D-3 and zinc are both heavily used by the immune system. They’re also necessary for reducing inflammation and supporting good cardiovascular health.