“…Enough is known about the importance of protein in pregnancy to conclude that mothers, and even more their offspring, will be much better off if they receive high-efficiency rather than lowefficiency protein in their diets. 7 Low-efficiency proteins, in addition to being poor nitrogen sources for growth and development, are also inferior for the maintenance of a vigorous state of health in the adult. Our bodies are made up for the most part of rather stable proteins, for example, the structural proteins of muscle, bone and connective tissue, whose rate of breakdown and replacement is rather slow.…”