Ancestral Nutrition Primal Iron 100% Beef Spleen Powder100% RDI of Heme Iron A Potent & Natural Iron 16 X More Absorbable A single serve of Primal Iron contains almost 100% of your RDI needs! Beef spleen has long been known as a natural food source of iron and now you can easily access this important organ in the convenience of gelatin capsules. Why heme iron is so important Heme iron, primarily found in animal sources, is more easily absorbed by the body because it is chemically bound to hemoglobin. In