Sample size: 86 males aged between 18 and 55 years with a body mass index (BMI) of between 23.0 and 28.0 kg/m2. A subset of 28 participants will undergo additional finger prick blood glucose and hydrogen breath test measures to assess biomarkers of satiation and satiety. Power calculations to ensure sufficient participants are included were based on power expected for a medium effect (0.25) at 80% power for a 2 condition between-measures design using G*power.