The diet right after surgery will be hard. Clear liquids, then full liquids, then puree, then soft foods. My dietician said half a cup of food per meal. 1000 calories per day is the goal. 80 grams of protein per day is the goal plus 64 ounces of water. I will be honest with you, it is very difficult. I am a food addict and it has been very hard. I miss all my old foods. having said that I am glad to see the pounds falling off.