More Cheese, Please: Farmers Are Squeezing Cows for Fattier Milk

Americans are eating more cheese and butter. That has dairy farmers scrambling to get their cows to produce fattier milk.

The efforts include using different cow breeds and feed mixes, and making sure animals are comfortable and don’t get too hot. The result is that the average amount of butterfat in milk produced by U.S. dairy herds has climbed past 4% and above the previous record set during World War II.