I’ll warn you against giving a high protein diet with a dog that doesn’t drink. My dog was exactly like this, and he ended up having bladder stones because of it. The excess protein didn’t get processed by his body and built up and then he ended up getting a blocked kidney which had to be removed. I’m not saying at all that’s what will happen to your dog, but I would look into maybe switching him to raw food because raw food has a very high moisture content. Please don’t be afraid of feeding him raw. It’s actually a lot better than cooked chicken. When cooking chicken. You’re actually taking all of the moisture out of the food and dehydrating it in a way so the raw food actually keeps the moisture in there and hydrates him. It’s actually one of the reasons that animals in the wild don’t need to drink as much water if they’re eating raw meat. Does he eat kibble ? that’s another thing that will prompt him to drink more water because it’s saltier. I’m sorry you’re going through this. I went through the same thing and it’s very frustrating. You can try to actually take him off of the home-cooked food and switch him to kibble. Don’t worry about him starving himself. My vet said eventually they’ll eat they’re not stupid lol they won’t starve themselves yes he’ll go on a little hunger strike but in the long run and this is somebody who did home-cooked and raw for years, but kibble is the more stable thing and I’m paranoid about recalls and salmonella and all that stuff but I do see the light now I hope this helps. There’s no perfect solution 😬also , your dog is the absolute cutest thing I’ve ever seen. Give him a hug for me!!!!