This study saw 69 overweight and obese people in their late 50s, on average, participate, where they were referred to a Veterans Affairs clinic for weight-loss support. Enrolled in a dozen group sessions over a period of six months, these touched on nutrition, exercise and behavioral changes. 50% of them were randomized, receiving a personal digital assistant (PDA) along the way so that they can record their food intake and activity each day, being nicknamed the “+mobile” group. This +mobile group also had a coach who checked in regularly via phone, and after six months, the +mobile group manage to lose 3.9 kg more on average compared to the standard treatment group.