Results: IL-6 levels were approximately four-fold higher in T1D individuals with HbA1c ≥ 7% compared with controls [fold-change 4.06 (95% CI: 1.36–12.1), p = 0.013], with optimally managed T1D showing a non-significant trend (p = 0.079). Here, IL6 is linked to type 1 diabetes mellitus.