Body composition
Body composition was measured before the trial and FIEC using a bioelectrical impedance analyzer (BIA) with an InBody 570 device (In‐body, Seoul, South Korea) after an 8 h fast. The device was designed using a multi‐frequency principle and provided 1, 5, 50, 260, 500, and 1000 kHz frequency screening in 60 s. For measurement, the subjects stood on the foothold electrodes after the subjects' palms and soles were cleared; they held the sensing handle using both hands, and the subjects kept their arms open and away from their body at a 30° angle without speaking and moving during the measurement period.