By Zahra Khaliq A little-known diet that allows you to design your own meals has been found to reduce body fat and aid weight loss, research suggests. The Volumetrics Diet is an eating plan designed to promote weight loss by having you fill up more low calorie, nutrient-dense foods. The aim is to reduce feelings of hunger while promoting other healthy habits, like regular exercise and the use of a food journal. The eating plan, based on a book by nutrition scientist Dr. Barbara Rolls, claims to help you feel full while eating fewer calories and offers in-depth guidelines, recipes, and tips on …