Hi Barbara-
I think our dogs have had similar issues and we also feed pretty much the same foods if I remember correctly. I also have used and still use in a rotation in addition to Perfect Form, Gastriplex by Thorne and Vetriscience’s Vetri-Pro BD. You could give one of these on an empty stomach as they are tablets or capsules. My dogs stools are best after I feed them THK or raw nuggets as toppers. One day a week, I feed them lightly cooked turkey with the SSLL dinner mix, with no kibble at all and their stools are great. They tend to be softer when I use canned as a topper. Good luck, I know it is frustrating.
