Studies show that dieters who keep a journal lose more weight than those who don't keep a journal. My Diet Journal includes on each page a space for the date, weight, calories, fat, carbs, food and beverage description, water intake, and exercise. The journal also features a weekly progress report. The weekly progress report includes measurements, average calories, average carbs, pounds lost, and a space for notes. The journal is 8.5 x 11 inches.