Pre-monitoring period: On day 1 of the experimental period, participants will be requested to come to the Diabetes Clinic (Ayr hospital). Baseline anthropometric data (e.g. age, gender, height, weight and body mass index) and drug history will also be recorded by the researcher. The participant will then be fitted with the Abbot FreeStyle Libre continuous glucose monitoring device (sensor) and the activPAL, activity monitor. We will also provide the participant with 24 h diet recall forms so that they can record their daily food intake throughout study period (15 days). After that the participants will return home, instructed to scan their blood glucose every 8 h using the FreeStyle Libre reader they will be supplied with, to record daily food intake, to refrain from smoking, alcohol, caffeine and moderate to vigorous physical activity throughout the experimental period, and to come back on day 5.