He is not eating.

My boy is 7 months old. I recently switch his food from Pro plan puppy chicken and rice to Pro plan sport 26/16. He is currently around 65 pounds give or take. When he was on the puppy pro plan I give him 3 cups a day. When I make the switch to the sport 26/16. I slowly increase it to 4 cups. But after a week he is just not interested in his food anymore. He would take a few bites there and now. But today he haven't eaten a single bite. He still love his treats. When I eat he would just sit next to me and like beg for human food. Should I be very concern? Take him to the vet? The things I did differently before this happen was I start filling his long with plain yogurt and that was about it. Any clue on what could be causing this issue? Thank you guys in advance.

Attachment 4153this is him yesterday

Hmm, there isn't a massive difference between the 2 foods so I don't see any reason why he wouldn't like the food. If it was my dog I would buy a bag of the old puppy food and see if he eats, if he doesn't, I would be at the vet asap. You can also try tossing the food and buying a new bag, maybe something is off about the food

Yes I still had some of the old food and he wouldn't eat that either. Could he be a picky eater or something could be really wrong with him.

If he’s not eating kibble at all, I would take him for a vet visit. If it’s just that he doesn’t want the extra cup you added, then I wouldn’t worry.

I'm with Annette, but...

The yogurt might not be agreeing with him...something "off" in his tummy. Stop the yogurt and see what happens over the next couple of meals.

If he will eat soft food but not hard food, consider that his back molars may be coming in and bothering him. I agree that filling a Kong with yogurt might be part of the problem. Also try cutting back on the amount of food; he may be in between growth spurts and self regulating his weight. I agree with trying a small bag of the puppy food.