26 Mar 2018 Blackmores Institute Protective role of carotenoids in diabetes 26 Mar 2018 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Serum beta-carotene may have a protective effect on diabetes and alpha-carotene may be a protective factor for diabetic retinopathy in non-smokers new research has shown. × To continue reading this article, please Log In or Sign Up for access.