Is diet pepsi bad for you? Question 1: Does diet pepsi contain any sugar? Diet Pepsi is a sugar-free carbonated beverage. It does not contain any added sugars like regular sodas and is sweetened with artificial sweeteners. [source] Question 2: What artificial sweetener is used in diet pepsi? The main artificial sweetener used in Diet Pepsi is aspartame. It provides the sweet taste without the added calories of sugar. [source] Question 3: Is diet pepsi linked to weight gain? There is no direct evidence linking Diet Pepsi to weight gain. However, some studies suggest that consuming artificial sweeteners may impact…