There is a best way to change your dog or cat’s food.
The key is “Slowly”.
Start by mixing some new food in with the original food and over several days, gradually increase the percentages until you are feeing almost allnew food then make the final switch.
For example, day one, you might have 90% original food, 10% new food. Day two, maybe it is 80% original, 20 % new food, Etc. it is ideal to do this over at least 3 to 4 days, even longer if you have the time.