They very probably are. Still, you're exposing your taste buds to sweetness all day, which can mess with your perception of taste. Plus, it just tastes worse.

They very probably are. Still, you're exposing your taste buds to sweetness all day, which can mess with your perception of taste. Plus, it just tastes worse. I'd much rather have a single sugar-containing soda on the weekend, or after finishing some hard physical labor, than liters of diet soda every day.