The truth about organic milk: cows are suffering on even the most “humane” dairy farms
(www.theatlantic.com)
i'm so glad you found the OWID link. do you see how the chart shows the vast majority of what is fed to animals is called "soy meal" or "soy cake"? that's the byproduct of pressing soybeans for oil. they literally eat our industrial waste. down at the bottom of the chart you can see the 7% that is fed directly to animals