is bydureon a glp-1 in Diabetes Care GLP-1 Agonists for Weight Loss:

Drp1-associated mitochondrial dysfunction and mitochondrial autophagy: a novel mechanism in triptolide-induced hepatotoxicity

This complex process means that conditions affecting the stomach or intestines can significantly impair B12 absorption, including pernicious anaemia, atrophic gastritis, previous gastric surgery, coeliac disease, Crohn's disease, and long-term use of certain medications (such as metformin, proton pump inhibitors, and H2 antagonists)

Gut Health Support BPC-157 is derived from compounds found in the gut, and its arginate variant is studied for its ability to protect the gastric lining , manage inflammation, and assist in gastrointestinal healing

But not everyone reacts the same way

Also remember that GLP-1 products are not all the same