This year, DASH came in second, with third place going to the flexitarian diet, a plant-based diet that allows meat on rare occasions. The Mediterranean diet has has been named 2019’s best by US News and World Report. Fourth place was a tie between the brain-focused MIND diet and Weight Watchers.What do all of these diets have in common? “Low-carb, high-fat plans like the ketogenic and Atkins diets were ranked among the five worst. There is no steadfast set of restrictions, as the Greeks, Italians, French and Spanish all eat differently. Other proteins include eggs, dairy and poultry. The bottom two—the Body Reset and Dukan diets—were written off as “unhealthy” and even “idiotic” by experts.