saccharin

an alternative to sugar which is artificial and used by people who want to lose weight

Saccharin is a high-intensity artificial sweetener commonly used as a sugar substitute in various foods and beverages. It is much sweeter than sugar, so only a small amount is needed for sweetness. Found in diet sodas, sugar-free desserts, and other low-calorie products, it provides sweetness without adding significant calories. While concerns have been raised about its safety, regulatory agencies have deemed saccharin safe for consumption at recommended levels.