where to inject b12 in leg Best Vitamin Injection Site: Administering B12 Shots Best Vitamin B12 Injection Sites:

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Vegans and vegetarians are at particular risk, since B12 is found almost entirely in animal products

As a general rule, IM is favored when the goal is rapid correction of a clinical deficiency, when the patient has difficulty absorbing B12 through oral or sublingual routes, or when a provider wants predictable peak serum levels

For multiple groups, the data were analyzed by one-way (ANOVA) followed by Tukeys and Dunnetts multiple comparison tests (details in figure legends)

Walker 2020 AOD-9604 Dosage Protocol: Subcutaneous Injection Timing For subcutaneous research use, 250500 mcg once daily is the standard starting range

In the United States, patients usually receive vitamin B 12 injections of 1 mg/d in their first week of treatment