RT Journal Article SR Electronic T1 A–Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance—Part 23 JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 830 OP 831 DO 10.1136/bjsports-2011-090294 VO 45 IS 10 A1 Ranchordas, M K A1 Blomstrand, E A1 Calder, P C A1 Burke, L M A1 Stear, S J A1 Castell, L M YR 2011 UL http://bjsm.bmj.com/content/45/10/830.abstract AB