Data collection/recruitment
Human milk volume
Convenience sampling was used to recruit eligible participants over a period of 6 months. Those who met the eligibility criteria were given participant information and those who subsequently agreed to take part in the study were invited to complete informed consent forms and enrolled.Data collection was carried out between July 2021 and November 2021. Eligible participants were assigned to three groups: (1) intervention, (2) placebo and (3) control using the block randomization method (Human milk volume was recorded as one of the main outcomes of the study by participants in a daily information recorder form. The infant's weight was also measured and recorded by the lead researcher. Statistical analysis was performed by a statistician who also did not know the content provided for the study groups and their allocation.