A number of algorhythms and programmes in the language "Algol-60" are proposed. On the ground of a balanced assortment of products and a "library of courses" corresponding to it is possible to formulate optimal nutrition rations for a definite designed period of time (1, 2, 3 weeks, etc). From the given rations one may compile a menu for any pre-set number of meals per day, to obtain information on the chemical composition of the ration, its cost, calorific value in weight units, as well as on the amount and kinds of products entering the ration.