Weight-loss drug found to shrink muscle in mice, human cells

It also decreases gut motility, which helps with the intended effect of appetite suppression. Young healthy people tend to shrug at that. As an old person that takes it right off the menu even before I read about accelerated sarcopenea. Maybe it's the same effect on the peristaltic muscles.

A bare glp-1 agonist doesn’t, I think, but the weight loss versions are double-acting and do also slow digestion.

Tirzepatide (Zepbound) is double-acting but semaglutide (Ozempic) isn't. Both are prescribed for weight loss.