For females ages 18 years and up
Inclusion criteria are required to be met before or at enrollment:
Mothers who are 18 years or older.
Infants delivered at 24-32 weeks OR infants (any GA) that researchers anticipate will be hospitalized in the NICU for at least 4 weeks, including, but not limited to, infants with a diagnosis of gastroschisis, a cardiac defect, intestinal atresia, etc.
Infants born at the UC Davis Medical Center or transferred to the UC Davis Medical Center NICU within the first 7 days of life.
Mothers who attempted initial milk expression within 12 hours of delivery.
Mothers who attempted milk expression at least 6 times every 24 hours from 72 hours after delivery to the Enrollment Visit.
Mothers who have delivered at least 96 hours (4 days) prior to the Enrollment Visit.
Mothers who have experienced a level "3" on the OMPQ before starting the collection of their first 24-hour pooled milk sample (study days 0-3).
Mothers who plan to feed their infants breast milk for at least 3 months.
Mothers who were pregnant with one infant.
Mothers willing to refrain from tandem feeding (directly breastfeeding) another child during the study period.
Mothers willing to refrain from enrolling themselves in another intervention trial during the study period.
Mothers willing to express, weigh, record, and collect 24-hour pooled milk
Mothers willing to remove nipple piercings during the study period.
Mothers willing to refrain from using pseudoephedrine (often found in Sudafed, Theraflu, Claritin-D, etc.) during the study period.
Mothers willing to express milk 6 times or more every 24 hours, including at least once during the night, and with no more than 5 hours between milk expression sessions, during the study period.
Mothers willing to refrain from consuming non-study supplements that contain nicotinamide-riboside (or similar derivatives, including NMN) during the study period.
Mothers willing to refrain from consuming galactagogues during the study period.
