Diets are a huge focus in the first part of any new year. Take a look at the best and worst diets of 2013.
7 / 13
3 (tie). Weight Watchers Diet
Weight Watchers is a smart, effective diet. It surpassed other commercial diet plans in multiple areas, including short- and long-term weight loss and how easy it is to follow. Among its pluses: An emphasis on group support, lots of fruits and vegetables, and room for occasional indulgences.