Erythritol is a natural, zero-calorie sugar alcohol widely used both alone and in blends with monk fruit, stevia, and allulose to create sweeteners that mimic sugar's taste and texture without the calories or glycemic impact. It is produced through fermentation of starch-sourced glucose and purified into crystalline form. Known for its tooth-friendly, low-calorie, and diabetic-safe profile, erythritol is essential in the growing market of health-conscious foods and beverages. This article explores what sweeteners contain erythritol, its benefits, production processes, and applications in modern products.