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Diets that are excessively low in calories are considered dangerous and do not result in healthful weight loss. A more desirable method of weight reduction is one that is moderate in calories and that encourages routine exercise.
Children and young adults should not limit calories below the Recommended Daily Allowance because they require a certain amount of calories for growth and development. Better eating habits for the entire family often accomplish the caloric decrease that is required for a child or young adult to reach a desirable weight.
Cynthia Dennison Haines, MD, family physician specializing in nutrition, fitness, and preventive health, St. John's Mercy Medical Center, St. Louis, MO, and Assistant Clinical Professor, St. Louis University's School of Medicine, Department of Community and Family Medicine.