Equal parts applesauce, raw bran (er...if that's not something you're allergic to?), and prune juice! Wonderful for constipation, tastes pretty good (I don't care for prunes or prune juice), and damned hard to overdose on.

I've got nothing to do that wouldn't wake the whole house so Imma go see if bran=gluten provided it's not too involved a search cuz I'm lazy.