I hope I have not seemed to be lecturing to you. I love you all dearly and am deeply concerned for your best welfare. Weston Price probably wrote this in 1934, after his research of isolated Swiss villagers and Gaelic islanders, but before he had visited groups whose diets were higher in animal products, such as the Eskimos and Africans. He therefore placed more emphasis on grains than he might have later in his career. Remember also that he is writing during the Depression, when meat was expensive.
Many people today find that they do very poorly on a high grain diet.
We must also point out that today's commercially available milk is a vastly inferior product to the milk readily available to his nieces and nephews in Canada and the Midwest. If we wish to obtain the same health benefits from dairy products as did the primitive Swiss, we must make a special effort to seek out high quality milk products such as biodynamic yoghurt, traditionally made cheeses and raw milk from pasture-fed cows. The challenge of supplying sufficient fat-soluble activators remains. Price found primitive diets rich in phosphorus, principally from animal foods and whole grains. The phosphorus in whole grains is bound up in phytic acid, which will block minerals unless properly neutralized by sprouting, soaking, sour leavening or long slow cooking, all of which were practiced by primitive societies.