My cat has become so picky all he will eat is treats. Does anyone know a healthy cat food that my cat would actually eat????

The healthiest is raw food.
The second healthiest is all meat, canned food.
NO carbs of any sort and definitely not grains in the wet food.
Cats do not need carbs, they are obligate carnivores.
Grains are an evil best avoided, especially GLUTEN.

When I began the only canned good meat food regimen, one of my ladies was able to get rid of her IBS. YUP.
The N.A. VETS WERE CLUELESS, I got nowhere with them in this regard.
PATHETIC.
I did a lot of research and actually a VET from Europe had enough wisdom to suggest something to me.
I also confirmed that in a book I'd read, written in English.
I took it from there.

Try EVO. All of my feline people LOVED It.
Now, we can't get it where I live.

One of mine LOVES raw, and also she loves cooked veggies! Just like her little doggy sister.
From time to time I do give them cooked vegetables and put canned tuna in their canned food.

Hope your monkey will like it.

P.S. As you know too many treats are really unhealthy.
Unless say, it's air dried liver or other meats and organ meats.
Then it is the perfect Treat, more like a meal really :)

P.P.S. I added you to my circle.
I am from R2T.
I really enjoyed your posts.

Hugs, Luna.🌺