My vsg was 12-19 and I am currently in the full liquid phase of the post op diet. The protein shakes fill me up so much that I can barely finish them and I use protein Gatorade zero and water to help with hydration. I haven't had any complications and I am truly grateful about that. I am also following my Dr's instructions completely but I'm nervous about the next stage because I get full so quickly after liquids alone. Best wishes for a safe surgery and recovery! Sent from my SM-G998U using BariatricPal mobile app