Some dogs are not fussy when it comes to their food while others are incredibly picky.
If your pooch is the latter and it is always difficult to switch their diet, make sure that you persevere as it is to protect their oral health.
To swap their food to a new kibble, start them with a bowl of 25% new food, 75% old. After a few days of them clearing the bowl, increase the new food to 50%.
After another few days to a week, increase it again to 75%. Once they’re happy with this, discard the old food completely and only feed them the new food.