McNeil Nutritionals, LLC, Fort Washington, PA, has launched Sun Crystals, an all-natural, low-calorie sweetener derived from stevia and pure cane sugar. It is available in tabletop packets and as a Granulated Blend. One packet of Sun Crystals contains 5 calories; Sun Crystals Granulated Blend has 16 calories per teaspoon and can be used for cooking, baking and sprinkling.