Galalith is a trade name for one of the earliest plastics, made from the milk protein casein.
Casein Nutrient Agar (CN) is a growth medium used to culture isolates of lactic acid bacteria such as Streptococcus thermophilus and Lactobacillus bulgaricus. It is composed of standard nutrient agar with the added ingredient of skim milk powder, which contains casein.
Quark Quark (or qvark) is a fresh cheese of East European origin. Dictionaries usually translate it as curd cheese.
Lactoferrin Lactoferrin can be purified from milk or produced recombinantly. Human colostrum ("first milk") has the highest concentration, followed by human milk, then cow milk.