aDepartment of Agricultural, Food & Nutritional Sciences

bDepartment of Pediatrics, University of Alberta

cDivision of Pediatric Gastroenterology & Nutrition/Transplant Services, The Stollery Children's Hospital, Alberta Health Services, Edmonton, Alberta, Canada

Correspondence to Diana R. Mager, PhD MSc RD, Professor, Clinical Nutrition, 2-021D Li Ka Shing Centre for Research Innovation, Clinical Research Unit, Department of Agricultural, Food & Nutritional Sciences, University of Alberta, Edmonton, AB T6G 0K2, Canada. Tel: +1 780 492 7687; fax: +1 780 492 2011; e-mail: [email protected]