UDCA is a steroid bile acid with known anti-oxidative and anti-inflammatory properties and used extensively in cholestatic liver diseases.19 Furthermore, some recent studies indicate probable anti-diabetogenic effects of this agent on glucose homeostasis and insulin resistance.20-23 The anti-diabetogenic properties of UDCA might have contributed to lack of GDM cases among our patients. The gene discussed is INS; the disease is gestational diabetes.