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Purchasing or supplying it outside of this framework is not legally sanctioned and carries significant risks, including exposure to counterfeit or contaminated products
That is why tests like methylmalonic acid (4) tend to be much more accurate than serum B12 levels
However, understanding these injections true efficacy and safety is crucial for anyone considering them as a weight loss method
Nurses should follow orders for how often to draw labs
Individual experience varies
Clinically, however, the evidence is mixed : Vitamin B12 has a well-established role in energy metabolism, especially in deficient individuals
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