If you're genetically disposed for such horrors, three cups of coffee a day will shrink your tits. Caffeine seems to be biggest culprit, which means that those gallons of Diet Coke a day might cause weight loss, but only above the waist. For the sanctity of all that is holy, ladies, if caffeine makes 'em shrivel up like a balloon in the fridge, cut out the coffee! You'll regret it!