RESULTS Baseline characteristics of the study population are shown in Table 1. As expected, serum lipid, glucose, and insulin concentrations were in the range of normality. Similarly, mean basal values of HOMA-IR, QUICKI, and ISI were also within the range of normality; HOMA-IR was 2.77, QUICKI was 0.331, and ISI was 3.11 (9-12). In keeping with this finding, no subject manifested with either impaired fasting glucose, impaired glucose tolerance, or type 2 diabetes.