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
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A healthcare professional should administer your first shot so they can monitor your reaction and check for any adverse effects
Common early side effects include constipation , nausea, and reduced appetite
Ongoing studies continue to examine cellular energy production, mitochondrial function, DNA repair, redox biology, and intracellular signaling
Reports also describe shrinkage of adipocyte size and reductions in fat-pad mass while preserving insulin signaling markers in certain models