In one corner, we’ve got Mounjaro, and in the other, Ozempic. They’re both once-a-week injectable drugs designed to help patients with type 2 diabetes manage blood sugar.

T he newest weight-loss drugs, Wegovy and Zepbound, are incredibly popular. But doctors are still learning about all of the ways they affect the body—both helpful and harmful—beyond reducing weight. In report published in Nature Medicine,