My provider doesn't take it out as standard, as obviously you don't know whether you will have problems or not. However, having WLS and losing weight quickly does make gall-stone formation more likely, and incidentally, women are twice as likely to develop gall-stones post-operatively than men. There is something called ursodeoxycholic acid which can help prevent gall-stone prevention, and many WLS patients outside of the UK are prescribed this as a prophylactic measure, but unfortunately, it doesn't appear to be something prescribed typically within the UK. When I mentioned it to my surgeon, his registrar, my GP or dietician, they've never heard of it!