M.S.
Hi A.,
I can't guarantee this is the solution, but my daughter had loose stools all the time too too. It was the juice...all juice did it to her...apple, grape, orange...didn't matter, they all caused it.
My ped told me to not bother giving her juice at any time. All kids need is water and milk if they are eating fruits. I stopped the juice and her stools firmed up within a couple days.
Good luck!!!
M.