GLP-1 medications like Ozempic and Zepbound are intended for lifelong use to treat chronic conditions like diabetes and obesity. But many people who start them end up quitting, either because obesity treatment is framed as a limited-duration intervention or because of the cost, loss of insurance or side effects. Some plan to restart the medication later. Research has yet to reveal the health effects of cycling on and off these drugs.
💉Consumer behavior for GLP-1s is moving faster than research on the effects of their use in different situations. Limited research exists on the health effects of periodic use. But other studies show that weight regain after stopping GLP-1s is faster than with behavior-focused diets.
💉 Experts warn that temporary use of these drugs can undermine health by reducing lean muscle mass each time treatment is resumed.
💉While muscle loss is standard with any diet or weight-loss regimen, GLP-1s can cause more dramatic muscle loss, resulting in a bonier, looser-skinned look, says Mahmoud Salama Ahmed, a medical chemist at Texas Tech University.
💉 When people stop taking the drugs, they quickly regain fat. Meanwhile, Ahmed says it is unclear how — or how much — the muscle they lost will eventually return. | 
