Your body weight is controlled by the number of calories you eat and the number of calories you use each day. To lose weight you need to take in fewer calories than you use. You can do this by creating and following a plan for healthy eating and a plan for regular physical activity.

Regular physical activity may help you lose weight and keep weight off. It may also improve your energy level and mood, and lower your risk for developing diseases like heart disease, diabetes, and some cancers.

Any amount of physical activity is better than none. Experts recommend doing 30 minutes of moderate-intensity physical activity on most or all days of the week for good health. To lose weight or maintain a weight loss, you may need to do more than 30 minutes of physical activity a day, as well as follow your healthy eating plan.

A non-clinical program may be commercially operated, such as a privately owned weight-loss chain. You can follow a non-clinical program on your own by using a counselor, book, website, or weight-loss product. You can also join others in a support group, worksite program, or community-based program. Non-clinical weight-loss programs may require you to use the program's foods or supplements.

A clinical program provides services in a health care setting, such as a hospital. One or more licensed health professionals, such as medical doctors, nurses, registered dietitians, and/or psychologists, provide care. A clinical program may or may not be commercially owned.

Clinical programs may offer services such as nutrition education, physical activity, and behavior change therapy. Some programs offer prescription weight-loss drugs or gastrointestinal surgery. Read more