[joshua c]

2% was after the cream was skimmed

it was called waste water and poured down the drain

then someone said hey we can sell that as low fat

[Varda]

That could be but also some cow breeds give higher fat milk than other cow breeds. Holsteins were the number one milk breed at that time in America.
I do remember that they said that there was a cow breed in India that gave the highest fat content in the world.