Both berberine and semaglutide are known to cause digestive issues such as nausea, gas, and changes in bowel habits
GLP-1 agonists can play a useful role, but they are not magic solutions
GLP1 exerts paracrine activity in the intestinal lumen of human Colon
Kidney injury appears only as a secondary effect of dehydration from severe gut upset. Anti-drug antibodies form in roughly half to two-thirds of users but do not affect clearance, weight, or blood sugar. Benefits that look like side effects Tirzepatide lowers uric acid (about -0.7 to -1.0 mg/dL, mostly through weight loss) and lowers blood pressure
Risk factors that should prompt consideration of B12 deficiency include advancing age (reduced stomach acid production), strict vegan or vegetarian diets, pernicious anaemia, gastrointestinal surgery (particularly gastric bypass or ileal resection), long-term use of certain medications (metformin, proton pump inhibitors, H2-receptor antagonists), nitrous oxide exposure (including recreational use), and conditions affecting the gut such as Crohn's disease or coeliac disease