Is the message of this article. It suggests that dieters who join slimming clubs lose five times more weight then those who try to do it on their own. People who followed a Weight Watchers diet lost an average of 8.6lbs in 3 months compared with just 1.8lbs with those on DIY diets. The weight loss was also more permanent with those on a Weight Watchers diet, after 6 months they had lost an average od 10.1lb but those that dieted on their own had put 5lb back on.