Saccharin is a powerful, zero-calorie artificial sweetener widely used in foods, beverages, pharmaceuticals, and cosmetics. It helps reduce sugar intake without sacrificing sweetness and supports health needs related to weight management and diabetes. Despite some concerns about gut health effects from excessive use, saccharin remains safe and popular under regulated amounts worldwide. Its heat stability, blending versatility, and long history make it an enduring sweetener choice in product development and consumer markets.