Originally Posted by mrsD

In the first paragraph is a statement that supplements do not work for Pernicious Anemia. The author of this article has not yet discovered, passive absorption is possible with no intrinsic factor? This article is from 2008. There are studies from before that date showing oral B12 works.

There are studies that show oral supplements of B12 work for those with pernicious anemia:

http://www.ncbi.nlm.nih.gov/pubmed/20708373

http://www.ncbi.nlm.nih.gov/pubmed/17475180

http://www.ncbi.nlm.nih.gov/pubmed/17375844

http://www.ncbi.nlm.nih.gov/pubmed/16897048