One patient had insulin resistance. The difference between the median glucose of patients (114±5 mg/dL) and that of the post-load controls (103±15.7 mg/dL) was significant. Insulin levels were significantly higher in patients than in controls. Triglycerides and fatty acids were also higher in patients with GD. High insulin levels were positively correlated with free fatty acids, triglycerides, and severity score. This evidence concerns the gene INS and Insulin resistance.