I found that ensure plus got me on tract. It is about 300 cal per bottle. I too had lost much weight, a bit more than 22%. Docs were not happy and said I had to stop the weight loss before the peg came out, I drank 3 ensures a day plus eating food, eggs, iceream every night, meat, ect. I did stop the loss and still use Ensure. Just recently I have gained a few pounds. I guess I am seven months out now....wow, has it been that long???
You can get Ensure Plus at Costco for 32 bucks a case. Expensive but worth it!