I have had good success with pumpkin also. I give each of my dogs pumpkin mixed in their food daily. It works for diarrhea and it also works for constipation.
Owned by:
Gunnar the Bee Eating Vizsla and
Hektor the Pig Dawg Dogo Argentino

"I had learned not to care. I blew a few smoke rings, remembering those years. Pot had helped, and booze; maybe a little blow when you could afford it. Not smack, though. ..." -- Barack Obama