In their first attempt to cluster T2D into subtypes within an Emirati cohort with long-standing T2D (~15 years), Bayoumi et al. [20] identified five clusters using five clinical parameters: fasting blood glucose (FBG), fasting serum insulin (FSI), body mass index (BMI), hemoglobin A1c (HbA1c), and age at diagnosis. The gene discussed is INS; the disease is type 2 diabetes mellitus.