In our study, the plasma level of IL-6 in obese patients with T2DM [5.91 (4.45–7.16) pg/mL] was higher than in obese patients without T2DM [3.71 (2.68–4.41) pg/mL] and higher than in controls [1.45 (0.55–6.59) pg/mL] (p < 0.01) (Table 3). Here, IL6 is linked to type 2 diabetes mellitus.