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People with pernicious anemia have a particularly serious problem
They are generally performed by doctors but not necessarily in a doctor's office
However, to ensure the quality of supplements, people should also choose those that have undergone independent third-party testing
Its worth noting that this difficulty in absorbing Vitamin B12 is different from Vitamin B12 Deficiency, a much more serious issue, in which your bodyoften because of diet or anemiasimply cant get the B12 it needs to continue functioning in a healthy way
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