Subjects randomized to the control group will not undergo mindfulness training. In order to provide a socially supportive environment similar to that experienced by the treatment subjects, monthly check-in sessions will be conducted for the control subjects. At these sessions, subjects will be invited to check-in about their experiences with weight loss efforts including food choices, activity levels and caloric goals. The first check-in session will occur during week 1 of the treatment group's mindfulness course, the second during week 6 of the mindfulness course, after which monthly sessions will be held during the same weeks as the mindfulness refresher sessions.