In this case the diarrhea is totally your fault. Adding in all that filler to his dinner just inflamed his digestive tract and gave him cannon butt. Knock it off, they don't need it.
So back to chicken and rice. Or drop the rice and simply feed him raw chicken, with the bone. The bone has the fiber needed to solidify the stools. The thigh meat is fattier than the white meat, so you can feed that. But he really needs the bone with it. You can also feed small bits of chicken liver, that should ease your malnutrition concern. Liver contains just about everything they need, raw feeders call it "mother natures vitamin". My guys can eat big chunks o' liver with no problem, but start small. Like the end of of your pinky sized piece every other day.
Yup... I know it's my fault. The vet got me nervous yesterday about malnutrition and suggested that I cook for Miko. My motherly instincts took over and I made stew when the dog really just needed soup. Ok, bad analogy, but you get the idea.

Going to give raw a try for the next few days and see how it goes. Is there much difference btw chicken & turkey? I kept the neck, heart & liver from our Christmas turkey (it's all in the freezer)... but I won't use it if it's considerably different than chicken.

