Thank you for the quick response! I assume American cheese is a safe source of protein as well?
American cheese is only 18% protein, which is NOT high enough to effectively boost protein intake (but is high enough that it doesn't DROP the levels any). It's also not really cheese- it's HIGHLY processed and full of artificial ingredients. I'd stick with real cheese, like mozzarella- string cheese is easy to work with, and is just mozzarella packaged for snacks at 28% protein it's also slightly more suitable as a protein snack