A portable blood glucose management device, comprising: a housing including a display and a user entry means for receiving user input; a processor in the housing operatively connected to the display and the user entry means; a memory connected with the processor; wherein the processor is operable to produce on the display a representation of a blood glucose measurement that may be stored in the memory and to associate the blood glucose measurement with at least one other blood glucose measurement that may be stored in the memory, and to seamlessly produce a graphical representation on the display of the associated blood glucose measurements after producing the representation of the blood glucose measurement on the display, wherein the processor is further operable to associate the blood glucose measurement with a context group including a plurality of blood glucose measurements associated with the context group in the memory, and the processor is operable to seamlessly produce on the display a sequence of a plurality of graphical representations of blood glucose measurements in the context group after producing the graphical representation of the associated blood glucose measurements, characterized in that the blood glucose measurement is automatically flagged as a post-prandial or post-exercise blood glucose measurement and then associated with a pre-prandial or pre-exercise blood glucose measurement stored in memory, the blood glucose measurement is automatically associated with its context group based on the set-up of the routine stored in memory or operating logic of processor, wherein the context group includes pre-prandial and post-prandial blood glucose measurements, or preexercise and post exercise blood glucose measurements, and the processor is further operable to seamlessly produce on the display textual advice directed to a currently displayed one of the graphical representations upon user input into the user entry means, the seamless producing of the graphical representation or the textual advice being automatically without user interaction or after a single user interaction with the entry means. a housing including a display and a user entry means for receiving user input; a processor in the housing operatively connected to the display and the user entry means; a memory connected with the processor; wherein the processor is operable to produce on the display a representation of a blood glucose measurement that may be stored in the memory and to associate the blood glucose measurement with at least one other blood glucose measurement that may be stored in the memory, and to seamlessly produce a graphical representation on the display of the associated blood glucose measurements after producing the representation of the blood glucose measurement on the display, wherein the processor is further operable to associate the blood glucose measurement with a context group including a plurality of blood glucose measurements associated with the context group in the memory, and the processor is operable to seamlessly produce on the display a sequence of a plurality of graphical representations of blood glucose measurements in the context group after producing the graphical representation of the associated blood glucose measurements, characterized in that the blood glucose measurement is automatically flagged as a post-prandial or post-exercise blood glucose measurement and then associated with a pre-prandial or pre-exercise blood glucose measurement stored in memory, the blood glucose measurement is automatically associated with its context group based on the set-up of the routine stored in memory or operating logic of processor, wherein the context group includes pre-prandial and post-prandial blood glucose measurements, or preexercise and post exercise blood glucose measurements, and the processor is further operable to seamlessly produce on the display textual advice directed to a currently displayed one of the graphical representations upon user input into the user entry means, the seamless producing of the graphical representation or the textual advice being automatically without user interaction or after a single user interaction with the entry means.