Just noticed this depart. There is grass and then there is grass. I told my outfitter in Montana that I could graze a cow per acre and he thought I was crazy. But yeah, you can around here.Some people argue otherwise, but grass fed beef is low quality garbage.
We raised Black Angus ( there is a red) and we would switch them over to corn for a couple of months.
I never saw it amount to much other than grass fed has yellow fat and corn fed is more white.
Other than that I never found a lot of rhyme or reason to it. Some beef is just better than other and you don't know till you cook it and take a bite.