Used in research settings to measure 1,5-anhydroglucitol (1,5-AG) levels in human serum or plasma. This assay helps assess short-term glycemic control, particularly in individuals with diabetes. Unlike HbA1c or fasting glucose, 1,5-AG reflects recent glucose fluctuations and detects episodes of hyperglycemia, including postprandial spikes. It is especially useful for monitoring glycemic variability and identifying unrecognized glucose excursions. The kit supports studies related to diabetes management, metabolic research, and evaluation of therapeutic interventions aimed at stabilizing blood glucose levels. Results aid in understanding individual responses to diet, medication, or lifestyle changes over days to weeks.