What is the primary component of foremilk?

Foremilk is the initial milk that a breastfeeding mother produces at the start of a feeding session. Its primary characteristic is that it is more watery and lower in fat content compared to hindmilk, which follows later during the same feeding. This watery consistency of foremilk is beneficial because it helps to quench the infant's thirst and provides essential hydration.

While foremilk does contain fat, protein, and carbohydrates, the predominant component is water. This makes it essential for hydration and sets a foundation for the baby to gradually receive the richer nutrients found in hindmilk, which is creamier and higher in fat. Understanding this composition helps to explain why foremilk is so crucial in feeding—allowing infants to first hydrate before receiving the higher calorie content necessary for growth.