Weston A. Price on Alkaline/Acid Balance

from "Nutrition and Physical Degeneration" pub. 1939, p.299

"An important source of misapprehension is the literature and teachings of fadists. Such, for example, as is the misapprehenion of many people that they must only use alkaline producing foods and that a great danger is associated with the use of acid producing foods. In the primitive races I have found practically no difference between the acid balance meat diet of the isolated Eskimos of the far north and the less acid vegetable and milk diet of the other groups as efficient factors in control of caries(cavities). It is important to keep in mind that our bodies have a mechanism for maintaining proper acid and alkali balance in the blood and this varies through only a very narrow limit whether the total balance of food eaten is acid or alkaline."

Do keep in mind that the dietary systems Price is comparing are NON-Westernized. All local, whole foods, no chemicals, pesticides, or cheetos.

I am particularly curious about this:

"It is important to keep in mind that our bodies have a mechanism for maintaining proper acid and alkali balance in the blood and this varies through only a very narrow limit whether the total balance of food eaten is acid or alkaline."

Can someone illuminate me on that point?

from the bottom of the learning curve, with love, Wombat