Transitions is not a diet; it is a lifestyle. The Transitions Lifestyle System® is a total lifestyle approach to weight management, clinically proven based on how your body reacts to, absorbs and breaks down specific foods. Transitions focuses on low-glycemic eating, body composition, behavior modification and exercise to help individuals reach their health and weight-loss goals. The recently launched TLS Shape Up™ program, designed with kids, for kids, teaches goal setting and planning skills while instructing kids on the fundamentals of good nutrition and exercise to maintain and achieve a healthy weight.