With my VGS i had to follow a diet before surgery. Two weeks before surgery was two protein shakes and a salad with protein. Three days before surgery was clear liquid only, broth, sugar free jello, sugar free popcycle. 10pm the night before surgery nothing. That in it self was a batttle which i concerd. The Surgery was new and scary to me, i followed doctors orders. After surgery i walked as much as i could which moved the GAS and helped the pain. I'm 2 weeks post and have never vomitted. Went back to work one week after surgery. This surgery is so much better than the lap band or bypass. Good luck!!!