This book wrtten in a reasonably non-technical style deals with diverse subjects which have in common the word "protein." The major emphasis is on two important and related topicsthe role of proteins in the human diet and the terribly vexing problem of how to go about improving the quantity and quality of world protein supply. Protein and politics are linked together because, unless we learn how to provide an adequate amount of this foodstuff to meet at least the minimum needs of our expanding world population, we shall continue to see little political stability in the face of mass hunger.