... are used in a wide range of food and non-food products: Common examples of foods that contain gelatin are gelatin desserts, trifles ... , as well, in fat-reduced foods to simulate the mouthfeel of fat and to create volume without adding calories. Gelatin is ... used for the clarification of juices, such as apple juice, and of vinegar. Isinglass, from the swim bladders of fish, is still used ...