iTAB, which stands for interactive Track and Analyze Blood, is a technology or system designed to monitor and manage blood-related data, often in the context of medical or fitness applications. The primary function of iTAB systems is to provide users with real-time insights into various blood parameters such as glucose levels, cholesterol, hemoglobin, and other critical biomarkers. This can be particularly useful for individuals managing chronic conditions like diabetes or for athletes looking to optimize their performance through precise biomarker tracking.