Have you seen the ingredient list of Ensure?!!! It's like ten inches long.
Seriously, the Whey Factors stuff is simple and tastes good. Amino acids are some of the building blocks of the body and are essential to good health. You can always add fruit like bananas if you need to. You have to be very careful not to get too much potassium or magnesium though. Have they done a baseline of your electrolytes at some point?
I hope you figure out something that works for you.
Annie