My husband has been on the peg for 6 wks. we are 3 wks out of treatments. He has 5 cans of the formula and 6-8 glasses of water per day.(all through his peg of course) Our Dr. told us when you can eat 500 calories. decrease a can and so forth. We are still taking baby bites of food, but that is our goal to work up to 500 cal per day and increase it. It will take a while I'm sure. One day at a time or one bite at a time!