Alex, sometimes it's a matter of not digesting... could be age, worms or teeth issues (though teeth usually more an equine than canine problem as dog don't really chew much). If you know worms aren't a problem, and not other problems such as cancer or thyroid, then I'd work on the digestion side. Probiotics, plus easier to digest foods. As I posted before, I do use Fastrack. There are foods that are made to digest easier, but you can also simply smash and soak to help also.
