Diabetic neuropathy is the most prevalent complication of diabetes mellitus, affecting up to 50% of patients with type 2 diabetes mellitus (T2DM). Among the various types of diabetic neuropathy, diabetic peripheral neuropathy (DPN) is the most common. Numerous animal studies have highlighted a strong association between the improvement of DPN and curcumin supplementation, particularly due to curcumin’s anti-inflammatory and antioxidant properties. However, the effects of curcumin on DPN have been evaluated in only one randomized controlled trial. In our study, we assessed the efficacy and safety of a 16-week supplementation with nanocurcumin in T2DM patients suffering from DPN.