Inclusion Criteria:  18 to 50 years of age Waist circumference of <94cm and <80cm for Caucasian males and females, respectively Waist circumference of <90cm and <80 cm for Asian males and females, respectively Available to attend two testing sessions at the research facility  Exclusion Criteria:  Diagnosed with type 2 diabetes or taking anti-diabetic medication (oral hypoglycaemic agents) Impaired fasting glucose (≥ 7 mmol/L) Gastrointestinal conditions that may affect glycaemic response Serious health conditions that may affect participation e.g. liver or thyroid dysfunction, recent major surgery Women planning pregnancy, pregnant or lactating.