The invention relates to a system for monitoring andregulating blood glucose values (58) in blood circulation,having an input device (14) for receiving at least oneblood glucose value (58) measured in the blood circulation,at least one insulin value previously supplied to the bloodcirculation by at least one insulin supply device (18, 51),and/or at least one nutrition value (59) of at least oneartificial nutrition agent previously supplied to the bloodcirculation by at least one nutrition supply device (15,52), and having a computer (17, 57) for calculating (6, 13)a new insulin value (55) and optionally a new nutritionvalue according to the influence thereof on blood glucosevalues and according to the previously measured bloodglucose value (58), and an output device (60) foroutputting the new insulin values (55) and optionallynutrition values.
