Continuous glucose monitoring
Between the two test days, glucose profiles were monitored continuously (CGM) using a Freestyle Libre Pro sensor (Abbott, Alameda, California, United States). The sensor was applied after completion of the first test day and profiles were recorded for 48 h, starting at 12 AM. The sensor was placed on the back of the upper arm to measure glucose concentrations every 15 min. The moving average was calculated for every 15 min over the preceding hour. These values were used to calculate the AUC and iAUCmin per 24 h with GraphPad Prism 8, and averaged between the two days. As baseline for the iAUCmin, the minimum moving average for each 24-h period was used. Furthermore, the mean 24-h maximum moving average of the continuous glucose concentrations was calculated.