[1] MRC Human Nutr Res, Cambridge CB1 9NL, England
[2] MRC Biostat Unit, Cambridge, England
[3] Univ Sydney, Boden Inst Obes Nutr Exercise & Eating Disorders, Sydney, NSW 2006, Australia
[4] Tech Univ Munich, Fac Med, Else Kroener Fresenius Ctr Nutr Med, Munich, Germany