Overview

Human milk is the white liquid produced by the mammary glands of humans. It is the primary source of nutrition for infants before they can digest other foods. Early-lactation milk, known as colostrum, carries maternal antibodies and reduces disease risk in newborns [1].

Origin and history

Human milk is as old as the human species itself. It has been the exclusive or primary food for infants across all cultures and historical periods. In many societies, wet nursing (feeding another woman’s child) was a common practice. In the 20th century, commercial infant formula became widely available, reducing reliance on human milk in some regions. Human milk banks, which pasteurize and distribute donated milk, have operated in various countries since the early 1900s.

Varieties and aliases

  • Colostrum: the first milk produced after birth, rich in antibodies and protein.
  • Transitional milk: produced from roughly day 2 to day 5 postpartum.
  • Mature milk: produced after approximately two weeks.
  • Foremilk: the milk released at the beginning of a feeding, lower in fat.
  • Hindmilk: the milk released later in a feeding, higher in fat.

Culinary uses

Human milk is almost exclusively consumed by infants directly from the breast or expressed and bottle-fed. It is rarely used in adult cuisine, though some chefs have experimented with it in cheese, ice cream, or baked goods. These uses are uncommon and often controversial due to safety and ethical concerns. Human milk is not pasteurized in home settings, and its composition varies by maternal diet, time of day, and stage of lactation.

Cross-cuisine context

Human milk has no direct analogue in Mexican cuisine or in the other LA-relevant cuisines tracked by this platform. It is not a traded or prepared food ingredient in any of those culinary traditions. The closest functional analogue is mammalian milk used for infant feeding, such as cow’s milk in formula, but the nutritional and immunological profiles differ significantly.

Notes for cooks

  • Human milk should not be substituted for dairy milk in recipes without understanding its lower protein and higher sugar content relative to cow’s milk.
  • Storage guidelines: refrigerated human milk is safe for up to 4 days; frozen for up to 6 months.
  • Signal characteristics: fresh human milk has a slightly sweet, mild smell. Sour or rancid odors indicate spoilage.