how does a brown cow make white milk when it only eats green grass?

Question

this is not a normal question about a cow it take thinking about.

Answer 1

Same reason a chicken's egg is white. It is loaded with calcium.

Answer 2

Why do you only have white skin when you eat brown meat?

Answer 3

i don't know but i rarely eat brown food and yet.............always brown......well sometimes green but not since that ecolli thing.