Saccharin

Saccharin is an artificial sweetener that's much sweeter than sugar but contains zero calories. It was discovered in the late 19th century and is often used as a sugar substitute in food and beverages, particularly for people looking to reduce sugar intake or manage weight. Saccharin is commonly found in diet products, such as soft drinks and low-calorie snacks. While it has been the subject of health debates, studies have shown that it is safe for most people to consume in moderation, although some individuals might be sensitive to it.