b12 injections in arm How to Give a Injection: Step-By-Step Instructions How Quickly Does a B12

Description

It attaches with specific cobalamin binding proteins, called transcobalamin I and II, to enter into the tissues

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J Clin Endocrinol Metab 90:59375941

There is no evidence supporting dietary restriction of B12-rich foods, as dietary intake does not typically cause problematic elevation due to regulated intestinal absorption