On Oprah.com three studies were talked about trying to establish, once and for all, the best way to drop pounds. Naomi Barr has the results. You can read about all the diets: South Beach, Zone, Ornish, Low Fat, Low Carb on and on and on.
Low Carb and Exercise
A low-carb diet consistently produced the greatest weight loss, so this plan—combined with exercise—seems to be a good place to start. "I'm a proponent of that approach if it means you'll eat fewer junky carbs," says Christopher Gardner, PhD, associate professor of medicine at Stanford University and lead author of the study .
Gardner says dieters may need to try more than one plan before they find success. "We are all so different—a diet that works for me may not work for you," he says. Although low carb won in terms of average weight loss, each diet had a few adherents who managed to lose 30 to 40 pounds. "What's more important than diet type is how closely you can adhere to it," says Gardner.
The truth is, says Meir Stampfer, MD, of the Harvard School of Public Health and an author of the study, "there is more than one way to go for weight loss, so don't get discouraged."
Having written that I can tell you from my own experiences that I have lost weight on Weight Watchers, counting calories, and once upon a time low fat. I also lost a lot of weight eating wheat and gluten free but eating grains i.e. carbohydrates. So I would take Dr. Stampfer's words to heart.