The nature of the study was explained to them, and their ready co-operation obtained. Eight patients had Addisonian pernicious anemia, and 5 of these had intrinsic-factor antibodies in the serum.

Are you lacking the intrinsic factor? It’s one of the causes of vitamin B12 deficiency, explains nutritionist Louise Pyne The Standard's journalism is supported by our readers.

It’s a common belief that eating nutritious food should automatically keep the body in good shape. But sometimes, even with a ...

Low levels of vitamin B12 can cause problems with your nervous system and blood cell production. A simple blood test can tell you whether your levels are low. Find out more from the experts at WebMD.

If your B12 level is below 200 pg/mL (picograms per milliliter), you're considered to have a deficiency. A normal level is 400 pg/mL or higher. Intrinsic factor antibodies.

It often affects older adults or those who lack intrinsic factor. Intrinsic factor is a substance in the stomach that binds to vitamin B12 so that the body can absorb it.

Who is at risk? Vitamin B12 is one of those nutrients that some people can have difficulty obtaining, and a key factor in flagging levels is a lack in a special protein called intrinsic factor that ...

Vitamin B12 is one of those nutrients that some people can have difficulty obtaining, and a key factor in flagging levels is a lack in a special protein called intrinsic factor that helps your ...

Who is at risk? Vitamin B12 is one of those nutrients that some people can have difficulty obtaining, and a key factor in flagging levels is a lack in a special protein called intrinsic factor that ...