@nick4 Just some thoughts.
I tend to believe that every dog owner feeds their dog diferently than the next - and most of us "swear by it". The key is to figure out what food will make you feel confidant that you are giving Jax what he needs. That might mean that you need to research kibble products, or the raw diet, or homemade foods, or all of these approaches. Doing that research will give you the confidence that you are giving Jax the best you can. It will also eliminate any anxiety that Jax might be sensing at mealtime. If Jax thinks you are worried about what's in his bowl, he's not going to "want it". (does that make sense?)
Are you hovering to see if he's eating? [LOL, Kinda sounds a little creepy, doesn't it? Would you want to eat if someone was looking over your shoulder?]
Or, do you put the bowl down and pick it back up after a half hour (empty or not)? [This will create a sense of urgency: "I better eat or she'll take it away!"]
Does he get his meals at the same time every day? [Bug doesn't get breakfast/dinner at the same time, but she knows that we go for a walk after we wake up and then she gets breakfast. Sometimes that's at 6am, sometimes it's at 10am, and she's always eager for her morning walk!]
It's fine to 'mix things up' a little with water, or chicken stock, or a surprise in Jax's bowl. [I started "bug" on chicken/rice/veggies and a bit of chicken stock when I first brought her home as a way to alieviate the stress from transitioning into our home. We still feed human foods, but we vary the protein, veggies and grain, adding fruits occasionally. (I nuke her meal for 30 seconds because I suspect that refrigerated food products will upset dog tummies.) Never have a problem with her eating or digestion. Personally, I like feeding her this way. She gets (canine) multi-vitamins to make sure I don't miss something vital - which makes me confident in this approach. (which is why I suggested the research - I feel good about what Bug eats, so she does too.)]
I guess what I'm trying to say is that you need to feel like you are giving Jax something that is good (for him) before he will feel like he's getting something good for him to eat.
ok, I'm really not a doggy psychologist....