I have a bag of All Living Things (old Petsmart brand) Conure and Lovebird Diet fruit flavored pellets. I got them about 2 years ago when I was switching my GCC from seed to pellets and have continued to use them as treats since them. I gave her a few today and realized the bag said Best By: May 2023. Is this a hard rule and I absolutely should not give her anymore, or is it okay to still use them as the occasional treat? Should I be worried that I already have her a few? I've kept them in the original bag, but always made sure it was closed tightly and stored in a dry place. They look and smell as they always have.