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Vitamin B12 injections offer a range of health benefits and can be particularly advantageous for individuals with B12 deficiency, pernicious anemia, or conditions that impair B12 absorption, such as gastrointestinal disorders (e.g., Crohns disease or celiac disease)
time-to-plateau lengthens with dose
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A 150-pound and a 250-pound patient typically use similar doses because the mechanism is signaling-based rather than concentration-based
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