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All findings described are from in-vitro or animal research.
Administer via intramuscular injection or intravenous (IV) injection
Injections are often medically necessary for people with Crohns disease, Celiac disease, or those who have undergone bariatric surgery
However, its difficult to reliably estimate levels of B12 deficiency because theres no agreed definition of how low B12 levels must be to be classified as deficient
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