X. The Function of Fat in the Human Organism and the Deceptive Local Syndromes

Of all substances in the organism, fat proves least of all a foreign body when taken in from the outer world. More readily than any other substance, it passes over from the quality it brings with it when taken as a food, to the mode of action of the human organism itself. The 80% of fat contained, for instance, in butter, passes unchanged through the domains of ptyalin and pepsin and is only transformed by the pancreatic juice into glycerine and fatty acids.