Milk composition
Milk proteins

According to the codex (standard 206-1999), milk is the normal mammary secretion of milking animals obtained from one or more milkings, without adding or subtracting anything, intended for consumption as liquid milk or for further processing.

According to the 1909 International Fraud Control Congress, milk is the entire product of the complete and uninterrupted milking of a healthy, well-nourished, non-overworked female dairy. It must be collected cleanly and contain no colostrum. The decree of March 25, 1924 defines "milk" as cow's milk, without specifying the animal species from which it comes. Any milk from a female other than a cow must be clearly identified.