Abstract: A first memory stores a calorie goal and quantities of food in several categories which a person anticipates will be consumed during a predetermined day. The quantity of food eaten during the preceding days are stored in a second memory. A computer determines the recommended number of calories and quantities of food in each category for the predetermined day as a function of the quantities consumed during the preceding days. The recommended quantities are stored in a third memory and comparisons are made between the estimated quantities and the recommended quantities, the results of which are displayed. The device, used with or without scales, provides for a healthy and balanced nutrition.