As A Treatment"...However, pregnancy, large doses of vitamin C, and folate deficiency may result in a falsely reduced B12 microbial assay..."
As A Treatment"...Another testing pattern used by doctors to determine vitamin B12 status is to test for intrinsic factor (IF) antibodies..."
As A Treatment"...Of pernicious anemia sufferers, 70% have these antibodies..."
As A Treatment" Vitamin B12 levels are tested in different ways with different accuracies..."
As A Treatment"...A lack of gastric hydrochloric acid tends to confirm a suspected lack of intrinsic factor (IF), as both can be due to a shrinking of gastric cells..."