If it states it's 100% chicken and contains no additives or seasonings, then I'd say you're probably fine! It would obviously be less risky just to feed pure chicken yourself, but in my opinion, these seem just fine
They look very good,but freeze dried chicken would most likely be better(almost certain these are processed in a way that actually destroys some nutrients unlike freeze drying,so if you want the most natural and appropriate form it'd be raw or freeze dried).
Thank you both. I've already been feeding a tiny bit of freeze dried chicken regularly, but although Mushu will take it from his bowl eventually... He doesn't exactly love it like he does fresh chicken. I was hoping he might enjoy this more.