The most widely used artificial sweetener is aspartame, commonly found in various food and beverage products marketed as low-calorie alternatives. Aspartame is approximately 200 times sweeter than sugar, allowing manufacturers to use smaller amounts to achieve desired sweetness levels. It is often used in diet sodas, sugar-free gum, yogurt, and many other products. Despite its widespread use, some individuals may have sensitivities to aspartame, particularly those with phenylketonuria (PKU), a rare genetic disorder. Other artificial sweeteners include sucralose and saccharin, but none have matched aspartame's prevalence in the market.