De Medicina
Celsus, Aulus Cornelius
Celsus, Aulus Cornelius. De Medicina. Spencer, Walter George, translator. Cambridge, MA: Harvard University; London, England: W. Heinemann Ltd, 1935-1938.
23 Now the following make phlegm thicker: raw eggs, spelt, rice, starch, pearl barley gruel, milk, bulbs, and generally all glutinous substances. Phlegm is rendered thinner by: all salted and acrid and acid materials.
24 But best suited to the stomach are: whatever is harsh, even what is sour, and that which has been sprinkled moderately with salt; so also unleavened bread, and spelt or rice or pearl barley which has been soaked; birds and game of all kinds, and both of these whether roasted or boiled; among domesticated animals, beef; of other meat the lean rather than the fat; the trotters, chaps,