Intrinsic factor (IF) and haptocorrin (transcobalamin I) are necessary for the absorption of vitamin B12
Intrinsic factor (IF), cobalamin binding intrinsic factor, also known as gastric intrinsic factor (GIF), is a glycoprotein produced by the parietal cells (in humans) or chief cells (in rodents) of the stomach. It is necessary for the absorption of vitamin B12 later…







