Weight-loss programs focusing more and more on men

Weight loss programs have traditionally targeted mostly women, and understandably so as women make up most of the market. But the tides are beginning to change and more and more companies are realizing that men are interested in weight loss, too. Weight Watchers and NutriSystem are both changing their approaches to make things more "man friendly." Nutrisystem launched its Silver program designed for older men last year, and just a few months ago Weight Watchers also launched a website specifically geared toward men. As a result, both companies are seeing record numbers of men signing up.

Is this another sign of the increasing obesity problem, or are weight loss companies just finally wising up?