Dairy Enterprises Inc., Orrville, Ohio, has expanded its Ruggles line to include low-fat Greek frozen yogurt in six flavors — original tart, vanilla bean, peach, honey, blueberry and strawberry. The frozen yogurt includes live, active cultures and is said to have twice the protein of regular frozen yogurt. It has no artificial ingredients, no high-fructose corn syrup and is gluten-free. It’s sold in pints and single-serve 4-ounce containers for a suggested retail price of $4.99 and $1.49, respectively.