A method of notifying a user of the high or low tendency of blood glucose values obtained with a diabetes management unit having a microprocessor coupled to a screen, a memory and user interface buttons, the method comprising : perform a plurality of blood glucose measurements of the user with the microprocessor; store in memory, the plurality of blood glucose measurements; determine if a more recent blood glucose measurement at a given time during a day is less than a first limit of about 70 mg of glucose per deciliter of blood or greater than a second limit of about 150 mg of glucose per deciliter of blood and if the most recent blood glucose measurement at a given time during a day is marked as a measurement taken before a meal or a measurement taken during a fasting period; if the determination is true, evaluate with the microprocessor if at least one blood glucose measurement of the plurality of blood glucose measurements taken within X hours over the given time of the most recent blood glucose measurement in a period of N recent days, is less than the first limit or greater than the second limit; and after carrying out the evaluation stage, announce that within the same period on the number N of days, the plurality of blood glucose measurements indicates a blood glucose tendency lower than the first limit or a blood glucose tendency greater than Second limitUn método de notificación a un usuario de la tendencia alta o baja de los valores de glucosa en sangre obtenidos con una unidad de gestión de la diabetes que tiene un microprocesador acoplado a una pantalla, una memoria y botones de interfaz de usuario, el método comprendiendo: realizar con el microprocesador, una pluralidad de mediciones de glucosa en sangre del usuario; almacenar en la memoria, la pluralidad de mediciones de glucosa en sangre; determinar si una medición de glucosa en sangre más reciente en una hora dada durante un día es inferior a un primer límite de alrededor de 70 mg de glucosa por dec