Karen,
Please clarify your reason for disagreement. Of course people died of pernicious anemia when untreated. They still do if they don't get enough B12 through treatment.
If intrinsic factor were necessary for people to use B12, all the methylcobalamin in the world wouldn't help them. So, I'm not sure what you mean.
rose
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Originally Posted by rose
Wherever the essential text was obtained, it is good.
However, the addition within the added graphics contains one serious problem: It is not necessary for intrinsic factor to be present for B12 to be used by the body. If it is not present, the patient malabsorbs B12 severely, but if B12 is absorbed through appropriate large oral doses or shots, that person can use the B12.
rose
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I disagree, Rose.
The reason I disagree is that years ago people died of pernicious anemia.
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