2.8. Randomization and Blinding
A person in charge of allocation randomly allocated the participants to the REP hydrolysate arm or the placebo arm with the block randomization method. A computationally generated random allocation sequence was used. The block size of the RCT was set to 4. The allocation factors were the POMS 2 score of the FI and VA and the total score of the Euthymia Scale. The person in charge of allocation concealed the allocation table until the day of allocation disclosure and ensured that the participants and the rest of the study members were appropriately blinded to the allocation. 