This workshop provides an in-depth understanding of blood glucose monitoring techniques and their clinical relevance in diabetes care. Participants will learn about different testing methods, including glucometers, HbA1c, OGTT, and laboratory-based glucose assessment. The session covers glucose fluctuations, factors affecting readings, and key phenomena such as the Somogyi Effect, Dawn Phenomenon, and Roller Coaster Effect. It also highlights the role of monitoring in personalized diet planning, medication management, and prevention of diabetes complications.