Paleo. Atkins. Zone. Dukan. Bodybuilding. Raw. South Beach. Weight Watchers. If It Fits Your Macros. Carb Backloading. It's fair to assume that every diet you hear about has indeed worked for some people, for without success no diet would ever gain the traction necessary to be known the world over. With that being said, here's the dirty little secret that nobody ever talks about: There is no diet that works for everyone.