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What the Published Data Shows Across the research literature, B12 deficiency rates after bariatric surgery fall in the following ranges (3): Roux-en-Y gastric bypass: approximately 2% to 80%, depending on follow-up duration and supplementation Sleeve gastrectomy: 0% to 36.4%, with deficiency often emerging up to two years post-surgery Biliopancreatic diversion with duodenal switch: highest rates, often requiring lifelong parenteral supplementation Weight loss medications: up to 2.6% incidence within one year of treatment These are wide ranges because research has pooled studies with very different follow-up windows and supplementation regimens
By blocking NNMT, the compound is associated with preserved NAD+ levels and reduced fat storage, alongside improvements in cellular energy utilization and insulin sensitivity
Who Should Consider This Test: Nutritional testing can help pinpoint the root cause of ailments such as depression, heart disease, obesity, fatigue, and more
Research models suggest activity in tissue protection and accelerated wound healing pathways
Different mechanisms, complementary effects
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