INS and type 2 diabetes mellitus: At baseline, HbA1c and fasting levels of plasma glucose, triglycerides and serum insulin and C-peptide were higher in men with type 2 diabetes than in both obese and lean men (Table 1), whereas body weight, BMI, waist, waist-hip-ratio (WHR), total fat mass and LBM were higher in both obese groups compared with the lean group.