The consumption of dairy products, made from the milk of cows, sheep, goats and buffalo, among other mammalian species, is almost as old as human civilization, with evidence of these products stretching back many millenia. The production of different kinds of dairy products originated as different ways to preserve the valuable nutritional goodness of milk components (lactose, fat, protein, vitamins and minerals) and make the milk safe for consumption, using basic principles like fermentati...