R J S Costa1, R M J Snipe1, C M Kitic2, P R Gibson3. 1. Department of Nutrition Dietetics and Food, Monash University, Notting Hill, Victoria, Australia. 2. Sport Performance Optimisation Research Team, School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia. 3. Department of Gastroenterology, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia.