Acesulfame K, also known as Acesulfame Potassium, is a calorie-free artificial sweetener commonly used in a variety of food and beverage products. Discovered in 1967, it is approximately 200 times sweeter than sucrose (table sugar), making it an effective sugar substitute in low-calorie and sugar-free formulations. Acesulfame K is stable under heat and in acidic or basic conditions, which makes it suitable for use in baking, cooking, and in products with long shelf lives, such as soft drinks, chewing gum, and dairy products. It is often blended with other sweeteners like aspartame or sucralose to achieve a more sugar-like taste and to mask any potential aftertastes. The human body does not metabolize Acesulfame K, which means it does not provide any calories or affect blood sugar levels, making it a popular choice among people with diabetes or those managing their weight. Approved by numerous health and safety authorities worldwide, including the FDA and EFSA, Acesulfame K has been extensively studied and deemed safe for consumption within established acceptable daily intake levels.