Randomization
During the pre-ingestion period, 100 participants were sequentially randomized 1:1 to the 2 groups by the data analysis department of KSO Corp. (Tokyo, Japan). Participant allocation was concealed by the controller for clinical trials (Tsurumi Univ., Kanagawa, Japan). After all data had been collected by the data analysis department of KSO Corp., the data code key was requested from the controller, enabling data analy- sis.