I have my operation on April 7th, I started my pre-op diet on Tuesday March 24th. Oh boy, have I struggled! I am allowed 4 pints of milk a day, 2 pints of clear fluids, 1 salty beef drink like Bovril and 1 sugar free jelly a day. The first few days were awful and I suffered from the most horrendous headaches and dizziness. I don't tend to feel hungry but I did nearly fall off the wagon yesterday when my husband tucked into a massive pizza. I am trying my hardest to keep focused and I have not cheated so far. I keep thinking about the end result and how slimmer and healthier I will be. Reading your stories has encouraged me to keep trooping on. good luck everyone.