Zone diet

The Zone diet is a high-fat, low carbohydrate fad diet devised by biochemist Barry Sears. It specifies the consumption of calories from carbohydrates and protein in a specified ratio, recommending eating five times a day to create a sense of satiety that discourages overeating. Like other low-carbohydrate diets, the theories behind this diet are unproven and there is insufficient scientific evidence to determine if it is safe or effective.