Dr. Barry Sears Dr. Sears Comments:

Everyone in obesity research has always known this ugly truth that keeping lost weight from returning is incredibly difficult because of the many biological defenders of body fat. Even the truly successful ones (those who have lost 30 pounds and keep it off for at least a year) found in the National Weight Control Registry are still overweight even though they consume fewer than 1,500 calories per day and exercise at least one hour every day.