Cyanocobalamin specifically appears in most formulations rather than methylcobalamin, adenosylcobalamin, or hydroxocobalamin
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
[22] B 12 deficiency in pregnant women is increasingly common [23] and has been shown to be associated with major maternal health implications, including increased obesity, [23] higher body mass index (BMI), [24] insulin resistance, [22] gestational diabetes, and type 2 diabetes (T2D) in later life
For residents near Troy, MI , the answer might lie in something simpler: a Vitamin B12 deficiency