Pear.
My cousin had the same problem but they didn't figure it out til se was a lot older than your DD.
I'd ask my aunty but she won't speak about it for some reason
Maybe she feels like a crap mum cos I know I do!!! LOL... the doctor was suggesting its because she has a bad diet, but she doesn't really, she doesn't eat her dinner 99% of the time, but has breakfast and lunch and she loves fruit and she'll drink water if its mixed with a tiny bit of juice and a tiny bit of cordial.

I'll try the brown sugar in water, she might drink it..anyone know how much to try? I also have my friend's thermomix here at the moment, so will whip up some pear juice. She had a shot of prune juice before (she wont' drink it in a sippy cup, but will have shots of it quite easily out of a medicine cup - weird child!!) and I've given her a couple of squares of chocolate.. just in case that helps (plus i wanted some chocolate, and I got busted....)