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In fact, injections and infusions may be more beneficial for people deficient in B12 due to a digestive issue or because they are older and have less stomach acid
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[127] [128] Synthesis [edit] Biosynthesis [edit] Vitamin B 12 is derived from a tetrapyrrolic structural framework created by the enzymes deaminase and cosynthetase which transform aminolevulinic acid via porphobilinogen and hydroxymethylbilane to uroporphyrinogen III
At minimum, check metabolic panels, liver function, lipid profiles, and fasting glucose before starting and every 8-12 weeks during combination therapy
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