gastric intrinsic factor

gastric intrinsic factor (GIF),

n a substance secreted by the gastric mucosa that is essential for the intestinal absorption of vitamin B12; also known as
intrinsic factor.
References in periodicals archive ?
This belief is still being propagated, as this quote from an article published recently attests: "Pernicious anemia is caused by inadequate secretion of gastric intrinsic factor necessary for vitamin [B.
Conservative estimates indicate that 2-3% of this population has, or will develop, pernicious anemia, caused by failure of gastric intrinsic factor production, resulting in B12 mal-absorption.