hey twirls...as long as your child isn't loosing weight....isn't acting ill....is still active and all......I wouldn't be too concerned. She's getting her nutrients through the special formual she is taking in....thats a good thing!
Most kids go through times like this at different times of their lives. They seem to want only one or two specific foods and will turn everything else away...very very normal.
About all you can do is offer other options through her finicky period....you will see that sooner or later she will begin eating other things....
My oldest daughter....when she was about the same age would only eat hot dogs....I mean massive amounts of hot dogs...breakfast, lunch and dinner....for about 3 weeks. Finally she gave in and got sick of only hot dogs...LOL. I made sure she had a multiple vitamin every day. She was fine
Hang in there mom.....you'll see
sabby