View the nutrition for String Cheese Sticks, including calories, carbs, fat, protein, cholesterol, and more (Baker). Want to use it in a meal plan? Head to the diet. There are 80 calories in 1 piece (1 oz) of Sargento String Cheese Snacks. You'd need to walk 21 minutes to burn 80 calories. Visit CalorieKing to see calorie. Frigo® Cheese Heads® String Cheese is America's Favorite. Creamy & delicious , stringy & fun and only 80 calories with 6 grams of protein. It's the perfect snack.