The Milk You Drink

　Have you ever thought about/where the milk you drink comes from?// In Japan,/most milk comes from factory-style dairy farms.// Many cows are kept in a barn/and given feed supplemented with vitamins.// In this way,/a large amount of milk can be produced quickly.// This reduces the cost of the milk/we drink.//
　On the other hand,/some dairy farms use “natural” techniques.// Their cows graze freely in pastures/and are not fed supplements.// These farms are unable to produce a large quantity of milk quickly,/but the cows are more contented.//
　Which is better,/producing a larger quantity of milk/that costs less for consumers,/or raising cows in more humane conditions/but the milk may be more expensive?// This is a difficult question to answer.//