Seyyedebrahimi S, et al. - This randomized, placebo-controlled, double-blind clinical trial was performed to determine whether resveratrol supplementation affected oxidative stress markers in patients with type 2 diabetes (T2D). Eight weeks of supplementation with 800 mg/day resveratrol was found to have an antioxidant effect in the blood and peripheral blood mononuclear cells (PBMCs) of patients with T2D.