What about organic?  An organic egg  is inferior nutritionally to a pasture-raised egg. It only means that the chickens or pigs ate feed free of pesticides, herbicides, chemical fertilizers and GMOs. But the feed could still be grains or soy. They live in covered concrete pens or in large cages where their feet may , never touch the ground. Such is the fate of organic Rosie chickens which I used to buy… But “organic” is the start of quality. At least it gives protection against poisonous weed killers and other toxins.