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
Copper peptides have been studied in cosmetic science, but evidence strength varies
One common question that arises is, "How long do the benefits of a vitamin B12 injection last?" The answer can vary from person to person based on factors such as metabolism, overall health, and the severity of B12 deficiency
Great product quick and efficient delivery
If a patient is asking about GLP-1/GIP medicines, direct them to a conversation with their prescriber and share neutral background reading on those medicines from peer-reviewed journals
