Frequently Asked Questions about Diet Coke and Weight Gain Does drinking diet coke make you gain weight? No, drinking diet coke does not directly make you gain weight. Diet coke contains zero calories and does not contribute to weight gain. However, it is important to note that diet coke, like any other carbonated beverage, can be high in sugar substitutes and artificial sweeteners, which may have other health implications when consumed in excessive amounts. Learn more about artificial sweeteners and their effects on weight Is diet coke a healthier alternative to regular soda? Diet coke can be considered a healthier…