Does diet pop make you gain weight?

Not directly, but...: Diet pops dont have caloric values in themselves and thus don't directly contribute to weight gain. Neither will they help you lose wt. As a matter of fact, they likely increase wt gain because: your taste buds enjoy the sweet tastes provided by the diet pops and when no diet pops available, u likely snack more on other sweets, hence the weight gain. The preservatives r not so healthy. Good luck.