My cat is 11yrs old & has always eaten Science Diet dry food, along with a teaspoon of canned wet food only two flavors. Suddenly he won't eat the dry, & won't eat the 2 flavors of wet food he has in the past. He is however, eating some different flavors of wet.
Why all of a sudden the change?
I recommend that you have your cat checked by a vet. This could be a medical problem such as gum disease or it may be related to age. When cats age they start to loose their sense of smell and taste. Vetcare