Milk is a white liquid food produced by the mammary glands of mammals. it is the primary source of nutrition for young mammals (including breastfed human infants) before they are able to digest solid food. immune factors and immune-modulating components in milk contribute to milk immunity. early-lactation milk, which is called colostrum, contains antibodies that strengthen the immune system, and thus reduces the risk of many diseases. milk contains many nutrients, including protein and lactose.as an agricultural product, dairy milk is collected from farm animals. in 2011, dairy farms produced around 730 million tonnes (800 million short tons) of milk from 260 million dairy cows. india is ...

Source: Wikipedia