Nature's lab - perfect iron - 180 vegetarian capsules iron is an essential trace mfneral and an important component of hemoglobin, the protein in red blood cells that assists in the transportation of oxygen throughout the body. Low iron levels may lead to feelings of fatigue. Nature's lab perfect iron helps regulate iron levels to healthy energy levels and red blood cell health. This formula utilizes iron as bisglycinate chelate, a form of iron that is gentle on the stomach and more bioavailable than other types of iron. . Nature's lab perfect iron healthy - 180 vegetarian capsules (180 servings)