Nice she was just being picky it seems. When she is hungry she will eat
On the iams note it's not the best quality for the price. You can fun comparable kibbles, puppy or otherwise
. You might be able to get away with more protein and better quality kibbles and not have to add the Sports mix. What Is that you got a link?
If you look under nutrition section there is a food sticky. Has a great link that offers food ratings. You should look for ones without filler in the first few ingredients (corn, rice, grains etc) for the best long term health. Of course each pup is different just wanted I offer my thoughts on iams