GLP-1 drugs like Ozempic and Zepbound are great at promoting weight loss, but they also cause folks to lose muscle along with fat, experts say.

Some new medications in development are also trying to solve for a persistent side effect of existing drugs: Patients who lose fat also tend to lose muscle. This can be particularly dangerous for older adults because it makes them more likely to fall and can worsen osteoporosis.

A GLP-1 medication used to treat type 2 diabetes and obesity may help cut a person's monthly migraine days by about half, a new study finds.