My dog turns his nose at others

Ever since I received a free bag of these from pinchme, my dog want no other. Which is crazy to me because his prior favorite were peanut butter flavor and these are beef and blueberry. I have purchased a couple more bags of these since the very first free bag because he has been turning his nose up at others. He comes in from outside and goes to the these Purina treats and pulls the bag down then just waits. It's adorable. I am so happy he really loves them. They do not have all the unnecessary junk other treats tend to have and that is very important.