Gluten-Free IronAid Non Gmo Le Certified Well-Tolerated Iron Formula Dietary Supplement What Is Iron Protein Plus? The human body needs iron as an essential part of supporting hemoglobin, an oxygen-carrying protein abundant in red blood cells. If you aren t getting enough iron, your body can t carry oxygen from the lungs throughout your body. Iron is also an integral part of many other proteins that help maintain overall health. The human body needs iron as an essential part of supporting hemoglobin, an oxygen-carrying protein abundant in red blood cells. Iron Protein Plus Benefits Promotes healthy red blood cell formation Supports healthy oxygen-carrying capacity of blood (hemoglobin) Essential for supporting immune health