Before giving up cigarettes, Cameron Diaz was a life long smoker. In fact, she used to smoke about 20 cigarettes a day! Since quitting though, she claims that smoking isn't even as bad for you as Diet Coke is. Here's her words, "Diet Coke is bad news. I’d rather just drink sugar. It's better for you” She went on to say, “I think one cigarette once in a while is not going to kill you." The bottom line is that any way to cut it, smoking is bad for you. But like anything, if you're going to do it, then it should be in moderation.