One hard gelatin capsule supplies 18 mg of elemental iron (from chelated ferrous fumarate). Iron is a mineral essential for the production of hemoglobin and red blood cell oxidation, anemia, stamina and healthy immune system. Well tolerated by most highly allergic individuals. Natural, Chelated Twinlab Chelated Iron Caps are easier to swallow and assimilate. Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. In case of accidental overdose, call a doctor or poison control center immediately. Ingredients: Iron 18mg, Potato Starch, Gelatin, Purified Water, Croscarmellose Sodium, Magnesium Stearate, MCT, Sodium Lauryl Sulfate.