A cow out on grass is just an incredible thing to behold... Cows and other ruminants can do things we just can't do. They have the most highly evolved digestive organ on the planet, called the rumen. And the rumen can digest grass. It takes grass, cellulose in grass, and turns it into protein, very nutritious protein. We can't do that.

I like the taste of grass-fed meat. It is chewier, I'll own that... The Argentines make excellent beef that's grass-fed. They've learned how to age it, and they've gotten good at it.

Animals raised on corn produce fattier meat, but it's not just that it's fattier, it's the kinds of fats. Corn-fed beef produces lots of saturated fats. So that the heart disease we associate with eating meat is really a problem with corn-fed meat. If you eat grass-fed beef, it has much more of the nutritional profile of the wild meat.

Michael Pollan Quotes