Calorie-free artificial sweeteners have become an integral part of the modern diet, especially among people trying to reduce sugar intake and control weight.The common types we have known well for many years are:Saccharin - a very old synthetic sweetener that is not broken down in the body and does not provide calories. Some studies have found a link between it and changes in gut microbiota composition and a possible effect on glucose tolerance.Sucralose - a chemical derivative of sugar that