Role of Gastric Secretion in Iron Absorption. ∗

Summary

Experimental evidence is presented for the existence of a substance in gastric juice from anemic dogs which facilitates iron absorption from the gastro-intestinal tract of normal dogs. These data would be consistent with the theory that iron may be absorbed in a manner similar to Vit. B₁₂. An intrinsic substance, secreted by the stomach, may be necessary for absorption of iron.