This is the liver cleansing diet I used:
It's formulated by Dr. Jean Dodds, who is more commonly known for the limited vaccine protocol a lot of people like to follow.
I pretty much just ignored everything else on that page that didn't deal with the diet itself and pretty much the only thing I needed to know was that it needed to be 25% white fish and 75% veggies and potatoes, Also the fact that 25-50% more food needs to be fed than kibble. The amounts giving should equal to about 8 cups, just mix everything together in a big bowl, freeze anything that won't be used in at least 3 days, and feed the amount needed to your dog in small meals throughout the day. Large meals are too much for the liver... has to be small amounts. My dog threw up right away, well actually regurgitated the food, if I gave him too much at one time.
Doesn't really go with the whole PMR belief that veggies shouldn't be fed, pretty much quite the opposite, but when a dog has liver problems protein can cause to much strain on the liver trying to deal with that so the less protein the better.
I honestly don't know what would have happened if I just switched right over to raw. He might have gotten better just the same but that diet is what I used and that's what worked.
His whole digestive system was a mess. I took him in to the e-vet because he was throwing up and couldn't hold down food or water. Had a small intestinal obstruction that got cleared up but his gallbladder had sludge and his liver was enlarged. His levels were outrageous. The e-vet I took him to had me try giving him that science diet prescription diet and he wouldn't eat it, it's horrible for a sick liver to not get calories, so when I took him to my regular vet his levels had gotten even worse and my vet said it looked like he was in extreme liver failure.
So I looked for something he would eat and that's what I found and he started eating and his levels started going down. I don't know how much that diet specifically is responsible, if it was just the fact he was finely getting calories, if it was that food and all the meds he was on (milk thistle, SAMe, stuff for his gallbladder and bile production, antibiotics), or if that food specifically is just generally good for the liver. I did read that white fish has something in it that helps a liver heal though which was interesting.
All I know is that his values went went down and he's healthy now. That experience was what I needed, the slap in the face, that finely got me to change my dogs diet for good. I switched his diet to raw right after his levels went back to normal and I haven't looked back since. He's healthy, he acts healthy, his blood work shows he's healthy, and his physical appearance shows he's healthy. I wouldn't ever go back to feeding him kibble, whether that had anything to do with his sickness or not, there's just no reason for it.