With a naturally flavored yogurt coating. Excellent source of calcium. Good source of whole grain (At least 8 grams of whole grain per serving. At least 48 grams of whole grain recommended daily). Calcium for healthy bones! Nature Valley Yogurt Chewy Granola Bars are an excellent source of calcium, which keeps bones strong. Whole grain for active lifestyles. Nature Valley Yogurt Chewy Granola Bars are a good source of whole grains. They help give you the energy you need for your healthy active lifestyle. Carbohydrate Choices: 2.