'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.