Nestle makes a formula called Compleat. It is make with some "real" food and it sometimes works better for people who are having trouble tolerating other formulas.
# Developed for patients with intolerance to semi-synthetic formula
# Helps promote beneficial bacterial growth and normal bowel function
From the treatment you described it sounds like what my sister had. She is very small, 4'11 and went to under 90 lbs. We made her tube feeding from "real" food. I'm an RN and I stayed with her throughout her treatment so I was able to evaluate changes we needed to make. Making it is very time consuming but we feel it was worth it. I found out about Compleat when one of the surgeons told us we couldn't use our own food. That is another story for another time.
Good luck.