Computerised dietary calculations: an interactive approach updated.

Five dietary interactive programs have been written based on the 4th edition of McCance and Widdowson's 'The composition of foods' (Paul & Southgate, 1978) to which additional recipes and foods, including products used in therapeutic diets, have been added. The programs are DIET1 for calculating the nutrient content of a meal, recipe or list of foods; DAILYD for calculating the nutrient intake for a day, meal by meal; EXCHNG for calculating the weights of any selected foods required to obtain any chosen weight of any selected nutrient; DIETAD which gives the code numbers and nutrient composition of foods which have been added; INFOD1 which gives the nutrient composition of any food on the file. The use of these programs is described and an example using DIET1 is given.