The antioxidant called resveratrol—which is found in red wine, peanuts, and berries—may improve the health of blood vessels in people with type 2 diabetes. According to the results of a new study, researchers have found that resveratrol supplements lessened artery stiffness in some diabetic individuals. Among a group of patients who each had an exceptionally stiff aorta at the start of the study, researchers found that 100mg daily doses of resveratrol reduced stiffness nearly 5% in just two weeks. Increasing the dose to 300mg per day for the next two weeks reduced stiffness by 9%. American Heart Association, May 2017