> growing primarily plants for food is far more efficient than meat production. Dairy cows and egg laying chickens and farmed catfish are much more efficient a

> growing primarily plants for food is far more efficient than meat production. Dairy cows and egg laying chickens and farmed catfish are much more efficient at turning vegetable matter into complete proteins than humans. If you accept the premise that humans need almost a gram of complete protein per kg of body mass per day, animal production is more efficient and quite necessary.