I love Diet Coke and drink it in moderation. I almost never have it at home but will order it on occassion when I'm out to eat. It seems to have the opposite effect on me and kills hunger or sweet cravings. I think it's the people who drink numerous diet sodas a day that start to have problems with it. Like anything else, it should be enjoyed in moderation and not as a main source of liquids in a day. I drink mostly water and always an extra glass when I have a diet soda.