http://www.cnn.com/2011/HEALTH/03/29/grass.grain.beef.cookinglight/index.html Embarking on an noble attempt at a Paleo diet. Going to try to start eating meats that are “Grass” fed. “All cows do graze on pasture for the first six months to a year of their lives, but most finish at a feedlot on a concentrated mix of corn, soy, grains, and other supplements, plus hormones and antibiotics.”