21 Apr 2016 Blackmores Institute Magnesium plays key role in keeping body clocks running on time 21 Apr 2016 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News The essential nutrient magnesium, plays a key role in helping living things remain adapted to the rhythms of night and day, UK scientists have been surprised to find. Magnesium helps control how cells keep their own form of time to cope with the natural environmental cycle of day and night. × To continue reading this article, please Log In or Sign Up for access.