I would be inclined to switch back to his previous food. My Max had this problem once, vomiting when I changed to a food that he was fine with when he was younger. When I went back to his regular food, he was fine again.
Max ate Nutro for a couple months when he was a pup. Then a whole bunch of consumer complaints came out about the company. You can google to read the complaints. I decided to avoid Nutro.
Is there a reason you wanted to change his food?
__________________ Kristin, Max and Teddy |