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,

About 140,400 obese patients in Massachusetts were prescribed medications like Wegovy and Zepbound in 2024, a 255 percent increase from 2023, according to a Globe analysis of insurance claims data.

The skyrocketing popularity of weight-loss drugs like Wegovy, one of a class of drugs called GLP-1s, is fast becoming a state budgetary concern. In deciding whether to cover the medications, policymakers must choose between the long-term benefits of reducing obesity among public employees and their families—which could cut spending on the treatment of chronic diseases—and the short-term costs.