We know you'd rather skip the fasting and bowel prep. But that's the way we've always done it. iStockphoto.com hide caption toggle caption iStockphoto.com Shots - Health News Patients Love A Gentler Approach To Surgery, But Surgeons Balk August 27, 2013 There's no evidence of benefit for many of the procedures surgeons subject patients to. A few hospitals are getting rid of time-honored practices, like fasting before an operation, because studies have found that patients come out stronger and happier without them. But traditions are hard to change.