15 Aug 2014 Blackmores Institute Antioxidant vitamin supplementation reduces arterial stiffness 15 Aug 2014 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Taking antioxidant vitamin supplements significantly reduces arterial stiffness according to new research. Arterial stiffness is a marker of early atherosclerosis and a risk factor for cardiovascular events. × To continue reading this article, please Log In or Sign Up for access.