Human milk offers a window into mammary gland function and its links to infant growth https://medicalxpress.com/news/2026-10-human-window-mammary-gland-function.html Shared patterns of human milk composition link mammary gland function to infant growth https://www.science.org/doi/10.1126/science.aee7240 Given the central role of breast milk in infant health, the WHO recommends exclusive breastfeeding for approximately six months, followed by continued breastfeeding up to the age of two