Some of the millions of Americans taking a GLP-1 drug to lose weight are getting an unexpected benefit: Their back and knee pain is getting better.

Doctors who specialize in back and knee pain say that some patients are showing up in their clinics with anecdotes about less pain and better mobility after losing weight while taking medications like Novo Nordisk’s DK:NOVO.B NVO Wegovy or Eli Lilly’s LLY Zepbound.

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