lah,

Having too little iron can make blood cells smaller, awhile having too little B12 can make the cells larger, so if both conditions occur in the same person the cells can be normal size or even small. Thus, most medical people would believe that B12 deficiency cannot exist---those medical people are terribly ill-informed.

Also, too little stomach acid can interfere with absorption of both iron (to a lesser degree) and B12. So those problems often occur together. It is important for people not assume though that if iron is strong or even high that B12 malabsorption cannot exist--it can.

rose