A system and method described herein simplifies data entry by a subject of a structured blood glucose test as well as helps with dietary compliance by providing specific dietary suggestions to the user. The system includes a portable device configured to be possessed by the subject. The portable device has a location detection system configured to provide data indicative of the location of the subject. A food database provides to the portable device a list of food items that are limited based on foods available at the location, such as a restaurant. The portable device is configured to receive a selection from the list that is indicative of a food consumed by the subject. A blood glucose meter reads blood glucose readings from the subject. The food database is configured to store the blood glucose readings and information about the foods consumed by the subject. Compliance to a prescribed dietary regimen can be monitored by the user and/or a physician.
