Valid and helpful information on losing weight can be found on the websites for the U.S. Department of Agriculture, Mayo Clinic, WebMD, UK National Health Service and Academy of Nutrition and Dietetics. Each website elucidates caloric intake and exercise as the two basic keys to healthy weight loss under a medical professional's supervision.
A healthy weight loss program consists of a realistic weight loss goal, a reduced-calorie, nutritionally balanced diet, regular physical activity and behavior modification to maintain goals, according to the USDA. A body mass index, or BMI, calculation is a good place to start, along with a consultation with a medical professional. After that, it is important to keep track of calories and physical activity during the weight-loss plan.
Weight loss simply means someone burns more calories than he consumes. Mayo Clinic states that this goal is achieved by reducing extra calories from foods and beverages along with an increase of physical activity. The key to maintaining weight is to make permanent lifestyle changes with regards to diet and exercise.
There are three basic facets of a healthy weight, according to the Academy of Nutrition and Dietetics. Preventing weight gain, producing a minor weight reduction and adopting a healthy lifestyle even without weight loss can improve overall health.