Do you know What is Yakult and Filled Milk. If you are looking for the definition of Yakult and Filled Milk or want to know what is Yakult and Filled Milk?, then this is where you will fetch your answers. Well, in simple terms Yakult is a probiotic dairy product made by fermenting a mixture of skimmed milk with a special strain of the bacterium Lactobacillus casei Shirota. While Dairy Product Both these products are unique in their own ways. Yakult is a Not Available colored dairy product and Filled Milk is Not Available colored. The food gets it color dependent on the ingredients used and the preparation methods employed. Sometimes artificial food colors are added to give the dairy product, a gourmet look. Apart from their color what distinguishes them is their flavor and aroma. Yakult bears Refreshing, Sweet and Tangy flavor with a Milky aroma whereas Filled Milk has Not Available flavor and a Not Available aroma. The color, flavor and the aroma of these products depict their origin. Yakult originated in Japan, whereas origin of Filled Milk is traced back to Unknown.