Tate & Lyle unveils Dolcia Prima allulose low-calorie-sugar: 'We believe this will change the food and beverage landscape forever' While allulose is found naturally in some fruits, Tate & Lyle is manufacturing it on a commercial scale via the enzymatic conversion of corn Tate & Lyle is launching a new ultra-low-calorie sugar that is found naturally in jackfruit and raisins, but is being made in commercial quantities via the enzymatic conversion of corn using a proprietary process. Dolcia Prima allulose has 70% of the sweetness of table sugar, but 90% fewer calories , and works well in combination with high intensity sweeteners such as stevia and sucralose.