Iron Bisglycinate Non-Constipating Gentle On Your Stomach Non-Gmo Gluten Wheat & ; Dairy Free Suitable For Vegans Iron Is An Important Component Of Hemoglobin The Protein That Carries Oxygen From The Lungs To All Tissues Of The Body And Promotes Iron Rich Blood. Iron Promotes Normal Red Blood Cell Production And Supports Energy Utilization. This Formulation Provides An Advanced Patented Form Of Iron Which Is Non-Constipating And Gentle On The Stomach.