All natural. rBST free (Made with milk from cows not treated with the growth hormone rBST. No significant difference has been shown and no test can now distinguish milk from rBST treated and untreated cows.). Real. Real California cheese. Grandma's recipe - protected over 3 generations. Karoun's handcrafted braided String Cheese - With breakfast, lunch or dinner, as an appetizer or just a quick snack, it's the perfect food for any time of the day. Rich in calcium and a good source of protein, Karoun's String Cheese contains no artificial ingredients or additives. It is an all natural and delicious part of a healthy lifestyle.