INS and Insulin resistance: His bloodwork revealed hemoglobin A1C of 5 (normal, <5.7), C-peptide 2.14 (normal, 0.8-1.8), fasting insulin 13.1 (normal, 5-12), and fasting glucose 99 (normal, 70-100), with insulin resistance score 3.2 (normal, <2), indicative of insulin resistance.