The N-acetyl-β-D-glucosidase (NAG) Activity Assay Kit is widely used in biomedical research and clinical diagnostics to measure NAG enzyme activity, which serves as a biomarker for various conditions. It is particularly valuable in assessing kidney function, as elevated NAG levels in urine indicate renal tubular damage, often associated with diseases like diabetic nephropathy or drug-induced kidney injury. In addition, this kit is employed in studying lysosomal storage disorders, where NAG activity is altered, aiding in the diagnosis and monitoring of diseases such as Tay-Sachs or Sandhoff disease. It is also utilized in environmental and microbiological studies to evaluate enzyme activity in soil or microbial samples, providing insights into nutrient cycling and microbial health. The kit’s sensitivity and specificity make it a reliable tool for both research and diagnostic applications.