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Advanced Nutrition by ZahlerAdvanced D3 FormulaSupports Healthy Bones and Immune SupportDietary SupplementGeneral HealthFeel Better EverydayKosher PareveNon-GMOGluten FreeSoy FreeDairy FreeVegetarian FriendlyAdvanced D3 Formula Vitamin D3 is a crucial nutrient for overall health. Yet a typical diet does not provide the recommended amount of this vitamin. In addition to supporting bone health research shows that Vitamin D3 supports overall health.