“...if you use a standard called "biological value" to rate protein sources... soy finishes far below eggs, milk, fish, beef and chicken. The food with the highest biological value ever measured is whey protein...”

“Thanks to this availability of suitable wild mammals and plants, early peoples of the Fertile Crescent could quickly assemble a potent and balanced biological package for intensive food production. That package comprised three cereals, as the main carbohydrate sources; four pulses, with 20—25 percent protein, and four domestic animals, as the main protein sources, supplemented by the generous protein content of wheat; and flax as a source of fiber and oil (termed linseed oil: flax seeds are about 40 percent oil). Eventually, thousands of years after the beginnings of animal domestication and food production, the animals also began to be used for milk, wool, plowing, and transport. Thus, the crops and animals of the Fertile Crescent's first farmers came to meet humanity's basic economic needs: carbohydrate, protein, fat, clothing, traction, and transport.”

“Cacao has great nutritional value, a lot of protein, which strengthens a person, and without sugar it is not fattening.”

“Protein, so far as we know, does not replicate itself all by itself, not on this planet anyway. Looked at this way, the [prion] seems the strangest thing in all biology, and, until someone in some laboratory figures out what it is, a candidate for Modern Wonder. (quote originally by Lewis Thomas)”

“As long as one egg looks pretty much like another, all the chickens like chicken, and beef beef, the substitution of quantity for quality will go unnoticed by most consumers, but it is becoming increasingly apparent to anyone with an electron microscope or a mass spectrometer that, truly, this is not the same food.”

“The soybean itself is a notably inauspicious staple food; it contains a whole assortment of "antinutrients" - compounds that actually block the body's absorption of vitamins and minerals, interfere with the hormonal system, and prevent the body from breaking down the proteins of the soy itself.”