Hi I am scheduled for sleeve surgery August 16, 2021, nervous but excited too, Surgeon said I didnt have to do the preop diet, ?? just liquids on day before and nothing after midnight. Is others doing just this, makes me wonder why? I was 305 been cutting back some, now I am 296 5 feet 5. 69 years old. first went to Dr in Feb 2021 had lots of clearances before surgery date, now just waiting......