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Vitamin B12 is considered beneficial and generally safe, even at high doses
The absorption process involves a complex mechanism requiring an acidic stomach environment, pepsin, and intrinsic factor, which facilitates the absorption of vitamin B12 in the intestines
some hypotheses involve microbial interactions at the skin or localized immune responses to cobalamin
At 20 mg/mL, the maximum 12 mg dose requires only 60 units on a U-100 syringe, fitting comfortably within a single draw
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