INS and metabolic syndrome: Participants were normoglycemic and normoinsulinemic (mean fasting glucose: 4.8 ± 0.1 mM; mean fasting insulin 10.6 ± 1.6 mIU/L), and showed no signs of dyslipidemia (mean total cholesterol: 4.2 ± 0.2 mM; mean triglycerides: 0.8 ± 0.1 mM).