I agree with PG. I also like Forti-Flora, but it is expensive, even when you buy in bulk online. Bogey is getting switched over to Dogzymes full-time as soon as the current box of Forti-Flora runs out. I swear by digestive enhancers. Bogey's problems are so much more infrequent since he's been on them, and he seems to like the taste - very palatable.