String Cheese ($2) came recommended more than once, so you know it's the real deal. Not only is it a special treat for your pup, it might already be in your fridge! And if you're worried about feeding human food to your dog, Willems told POPSUGAR it's not about the actual item, but the action that comes before. As long as you're not giving your dog string cheese directly from your plate or the table, your pet won't know the difference and it's perfectly healthy.