Inclusion Criteria:  Non-smokers.  Have maintained a stable weight for 6 months (self-reported). No history of gastric, digestive, cardiovascular or renal disease (self reported). Female specific: must be using a monophasic, low dose combined OCP (containing less than 50μg oestradiol and a synthetic progestin) OR females with regular menstrual cycles (self-reported).  Exclusion Criteria:  Severe food allergies, dislike or intolerance of study foods or drinks.  Currently undergoing a lifestyle intervention (structured diet or exercise) Diagnosis of a condition or currently undergoing treatment therapy known to affect glucose or lipid metabolism (e.g., type-2 diabetes, taking statins), or contraindications to exercise. Use of medication or supplements that may affect hormone concentrations. Excessive alcohol consumption (>14 units/week). Intensive training schedule (>10 hours/week). Female specific: currently pregnant or breastfeeding, the use of any hormonal contraception, and the self-reporting of short (<24 d), long (>35 d), or irregular menstrual cycles.