Zone Diet Zone diet is a weight loss program through healthy eating, developed by Dr. Barry Sears, a biochemist by profession. According to Sears, a healthy body can be gained through a balanced intake of 40% carbohydrates, 30% proteins and 30% fats. He claims that following the zone diet prevents a person from having diabetes, heart ailments and cancer. It also helps in maintaining normal blood pressure and a perfect hormonal balance. **The Zone Diet was created by Barry Sears, PhD. Barry Sears, PhD does not endorse, promote, review, or warrant the accuracy of the products or services.