Advanced Nutrition by ZahlerAdvanced D3 FormulaSupports Healthy Bones and Immune System General Health Dietary Supplement Feel Better, EverydayKosher PareveGluten FreeDairy FreeSoy FreeThis Product Was Manufactured in a GMP Certified FacilityAdvanced 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.