3. Flexitarian Diet
A blend of the words flexible and vegetarian, the Flexitarian diet encourages people to eat vegetarian most of the time for better health, but doesn’t call for cutting out meat entirely.
4. Weight Watchers
Weight Watchers is an especially popular diet, promoted by celebrities like Oprah Winfrey. It works on a points system, where each food is given a number of points, and people are told a total number to aim for each day. Foods that are high in nutrients and are filling have fewer points overall. Sweets, on the other hand, are high in points.