perusing
when mine's constipated (and it's either constipation or diarreah...read post about the rottie humping/diarreah issues several posts down) I give him fruit.
He really like watermelon, and he'll eat four bananas in a row if I let him (and break it up into small pieces so he can work it in him mouth a bit.
I can't directly recall but isn't flax seed and flax seed oil great for both diarreah AND constipation?