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The unhealthy pancreas does not make enough intrinsic factor, and deficiency ensues when pancreatitis becomes chronic and, B12 deficiency ensues
doi:10.1093/icb/icab005
The peptide worked at both 10 mcg/kg and 10 ng/kg doses
B-12 Deficiency & Stomach Surgery June 28, 2022 Many people who have had bariatric (stomach-reducing) surgery need to supplement with B-12 and other B vitamins
Weight Loss Support: B12 injections are sometimes used as part of weight loss programs, although they are not a standalone solution for weight management
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