Unrelenting Thermal Blue Citrus Energy Supplement. Sweetened with Splenda. Chron-ic (kron-ik) adj. of long duration; continuing: Kronik Blue Citrus low-carb has all the unrelenting energy and refreshment of the original. Plus, we added a special blend of herbals to help boost your metabolism, and curb your hunger. The only thing missing is the calories. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)