21st Century, Iron, 65 mg, 120 Tablets

21st Century Iron delivers 65 mg of elemental iron in ferrous sulfate form, a highly absorbable divalent iron compound with superior bioavailability compared to ferric alternatives. Iron serves as the central prosthetic group in hemoglobin and myoglobin, facilitating oxygen transport and cellular respiration while supporting energy metabolism and cognitive function. This high-potency formulation addresses iron deficiency anemia and supports individuals with elevated iron demands, including menstruating individuals and endurance athletes. The 120-tablet supply provides extended supplementation with straightforward once-daily dosing alongside meals to optimize absorption and minimize gastrointestinal irritation. Laboratory-tested for quality assurance with gluten-free certification, this formulation represents three decades of trusted mineral supplementation.