A Study in Lactating Mothers and Their Newborns to Analyse the Composition of Human Milk

Inclusion Criteria: * Pregnant women in the third trimester of pregnancy (≥28 weeks) who have the intention to provide breastfeeding for at least 6 months post-partum. * Age ≥ 18 years. * Willingness to provide residual human milk. * Living in proximity of NCRU (clinical site in NL). * Dutch speaking and reading. * Freezer -18°C available. * Having mobile phone, tablet, or computer available. * Signed informed consent from the subject (pregnant woman). * Signed informed consent from the other parent and/or legally acceptable representative, of the unborn baby(s), aged ≥ 18 years. Exclusion Criteria: * Pregnant women known positive for human immunodeficiency virus (HIV), hepatitis B (HBV), or hepatitis C (HCV). * Multiple pregnancy \> 2. * Incapability of subjects to comply with study protocol as per the judgment of the site staff (e.g. fluency in local language, access to laptop/smartphone devices and internet connection required for data collection). * Women (and their unborn baby(s)) with current or intended participation in any other clinical study involving investigational or marketed products. * Employees and/or children/family members or relatives of employees of Nutricia Research or the participating site. Continuation exclusion criteria (after birth) * Stillbirth * Newborn having any congenital abnormality, chromosomal disorder or severe disease that would prevent the infant from breastfeeding and/or growing normally based on the opinion of a health care professional and/or study physician. * No donation of any milk sample within the first 8 weeks postpartum (timepoints week 1, week 1.5, and week 4).