Blueglass Yogurt believes in natural flavors. Natural sweet and sour is healthier! Blueglass Yogurt advocates the use of ingredients from nature itself to create heathier food with natural sweet and sour flavors. Every drop of yogurt offered is fermented with raw milk, freshly produced, and no need to be further processed. Blueglass Yogurt's products are sugar substitutes free. Natural sweet and sour is healthier!