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The reasons cited by the FDA included concerns about immunogenicity, peptide impurity characterization challenges, and the lack of adequate safety data from human clinical trials
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The B12 I get come in 10,000 mcg vials
more studies may be forthcoming, but for now, anecdotal evidence is what exists
Memory and learning depend on healthy synapses, and proteins that maintain those synapses tend to decline with age
Is it safe to get B12 injections even if Im not deficient
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