glp-1 and serotonin The intestinal lining is not just a digestive surface. It is a sophisticated neuroendocrine interface. Enteroendocrine cells release gut peptides such as GLP-1, CCK, PYY, that directly regulate vagal signaling Psychotropic effects of GLP-1R agonists

Both medications are administered via injection and work to promote weight loss by reducing appetite, enhancing feelings of fullness, and regulating blood sugar levels

These medications slow gastric emptying (food stays in your stomach longer), boost insulin production, and significantly reduce appetitewhich is exactly how they drive weight loss

But skipping dinner means missing 30 to 50 grams of protein your muscles desperately need

[1] [2] While the FDA label and clinical literature extensively document common digestive symptoms, mucus in stool is not specifically listed as a recognized adverse effect of tirzepatide