Erythritol is a sugar alcohol that is commonly used as a sugar substitute in various food products. It occurs naturally in certain fruits and fermented foods but is typically produced industrially by fermenting glucose with yeast. The fermentation process converts the glucose into erythritol, resulting in a white, crystalline powder that closely resembles sugar in terms of taste and texture but with almost no calories. Erythritol is popularly used as a sweetening agent in sugar-free and low-calorie food products, including beverages and baked goods, as it’s able to provide sweetness without causing significant increases in blood sugar levels. Erythritol helps prevent tooth decay, making it a popular ingredient in toothpaste and gum.