Milk is an opaque white liquid produced by the
mammary glands of female
mammals (including
monotremes). Mammary glands are highly specialized
sweat glands. The female ability to produce milk is one of the defining characteristics of mammals. It provides the primary source of nutrition for
newborns before they are able to
digest other types of food. The early
lactation milk is known as
colostrum, and carries the mother's
antibodies to the baby. It can reduce the risk of many diseases in the baby. Males of all mammal species retain the breasts that are part of the fundamental mammalian animal structure, hence their nipples. Lactation occurs in males in certain rare circumstances, both naturally and artificially, however, some pharmaceuticals precipitate lactation in males readily. The exact components of raw milk varies by species, but it contains significant amounts of
saturated fat,
protein and
calcium as well as
vitamin C.
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n. นมไขมันต่ำ (syn. skim milk)