Saccharin is an artificial sweetener widely used in food, beverages, and pharmaceuticals as a calorie-free sugar substitute. It is recognized as safe by global health authorities when consumed within recommended limits. Saccharin offers benefits like weight and diabetes management but requires moderate consumption considering ongoing research into metabolic and gut health effects. This article provides an in-depth look at saccharin's properties, safety, and applications to help readers make informed choices about its use.