 Obesity has reached epidemic proportions worldwide. In the United Kingdom, 58 of adult women and 65 of adult men are either overweight or obese Health and Social Care Information Centre 2014, with the expectation that rates will increase Ng et al. 2014. Obesity, mainly caused by a chronic positive energy balance, is a known risk factor that contributes to the development of type 2 diabetes and cardiovascular diseases, and the subsequent morbidities and mortalities Kopelman 2007. A positive energy balance is inevitable with the composition of current western diet that contain refined fibre-depleted carbohydrates that are consumed quickly, and have minimal effects on long-term satiety Cleave 1974; Heaton 1973. 