A system for medical diagnosis, monitoring, and treatment is described, including a medical band comprising one or more sensors configured to gather data associated with at least one symptom of a medical condition, a memory configured to store the data and an application, the application being configured to determine the medical condition using the data, a processor configured to execute the application, and a notification facility configured to provide a notification upon receiving from the application an instruction associated with the notification, wherein the notification is associated with a diet.