However, this side effect is not common and can be minimized by consulting with your physician on prescribing right injection dose
The emphasis of this page is therefore on catalog clarity, research-only designation, and practical logistics rather than any claim regarding biological application or outcome
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Fothergill, Amy, and Julia Finkelstein
Put simply, I don't believe the B12 result, and in my lab, I never saw a result of zero for B12
Common Causes of B12 Deficiency Document the cause of B12 deficiency to support the specific code : Pernicious anemia Autoimmune destruction of stomach cells Gastrectomy or weight loss surgery Loss of intrinsic factor production Strict vegetarian diet Inadequate dietary intake Crohns disease or celiac disease Malabsorption in the small intestine Chronic pancreatitis Insufficient pancreatic enzymes Bacterial overgrowth in the small intestine Bacteria consume B12 Long-term metformin use Interferes with B12 absorption Neurologic Symptoms in B12 Deficiency B12 deficiency causes nerve damage