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Comparing GLP-1 Medications and Bariatric Surgery *Results vary by individual
Genetic evidence that diabetes drug GLP-1 receptor agonists achieve weight loss primarily by reducing fat mass more than muscle
Common factors that can impair absorption include: Age-related decrease in stomach acid production Certain medications including proton pump inhibitors and metformin Gastrointestinal conditions like Crohn's disease or celiac disease Vegetarian or vegan diets (B12 is primarily found in animal products) Bariatric surgery or other digestive tract surgeries Pernicious anaemia (autoimmune condition affecting intrinsic factor) This is where vitamin B12 injections offer a significant advantagethey bypass the digestive system entirely, delivering this crucial nutrient directly to your bloodstream for immediate availability to your cells
J Endocrinol 264(2):e240210 McIntyre RS, Mansur RB, Rosenblat JD, Rhee TG, Cao B, Teopiz KM, Wong S, Le GH, Ho R, Kwan ATH (2025) Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and suicidality: A replication study using reports to the World Health Organization pharmacovigilance database (VigiBase)
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