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B complex vitamins are a group of eight water-soluble vitamins that play important roles in the body

For instance, Medicare may limit 96372 to once daily, unless multiple drugs are medically necessary

Animal studies have suggested a potential link to thyroid tumors, though this has not been proven in humans (FDA prescribing information for Wegovy)

Hong S, Moreno-Navarrete JM, Wei X, Kikukawa Y, Tzameli I, Prasad D, Lee Y, Asara JM, Fernandez-Real JM, Maratos-Flier E, Pissios P. Nicotinamide N-methyltransferase regulates hepatic nutrient metabolism through Sirt1 protein stabilization. Nat Med. 2015 Aug;21(8):887-94. doi: 10.1038/nm.3882. Epub 2015 Jul 13. PMID: 26168293; PMCID: PMC4529375