Low-moisture part-skim mozzarella cheese with jalapeno peppers. Contains 70 calories per serving. Tired of plain mozzarella string cheese? Now with Polly-O Jalapeno string cheese enjoy your favorite wholesome snack with flavor. The spicy kick of real jalapeno peppers combined with the creamy texture of mozzarella cheese: the perfect balance to spice up your everyday snack a little - all for 70 calories and 6 g of protein. Contains 0 g of lactose per serving. kraftfood.com.