Heme iron is a highly bioavailable form of iron, isolated from animal sources with maximal human intestinal absorption. Heme iron is not associated with common side effects of elemental (nonheme) iron supplementation such as constipation, nausea, and gastrointestinal upset.
Each vegetable capsule contains:
Iron (heme iron polypeptide from porcine hemoglobin) 11 mg
Vitamin C 90 mg
Folate (from calcium ʟ‑5‑methyltetrahydrofolate) 333 mcg
Vitamin B12 (methylcobalamin) 333 mcg