'Grass fed is the new organic' (online)

The Eco Guide to grass-fed

'Grass-fed' is the new organic. US sales of grass-fed labeled milk, eggs, yogurt, butter, cheese and even protein powders are soaring. Livestock are reared outside, deriving most of their diet from grass, in contrast to the North American system where cows are grain-fed in a Cafo (concentrated animal feeding operation). Studies suggest grass-fed milk contains far more omega-3 (desirable), and far less omega-6 (undesirable). It can also help ensure livestock products are free of GMOs, as most conventional feed contains GM ingredients. Plus, animals reared outside are given fewer antibiotics.