After months of not being interested in food I switched him to Purina pro plan large breed puppy food and he is inhaling it. (Not a rec just sharing!)
I had him on one of the fancier ones after he didn’t respond well to lamb protein and he loved chicken protein. I decided I’d move him to Purina pro plan when he’s an adult so I wanted to try it now and he is obsessed! No toppers needed he just inhales it. He went from barely being interested in 2 cups of food a day to 4-5 🙌ðŸ¼