After the digestive organs and juices have from long practice become adjusted to the digestion of a certain feed, which is then suddenly withheld and another of quite different character and properties is substituted, the second feed is not well digested; it may even irritate the digestive canal.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The whole secret of cooking meat is to keep the juices inside, and to do that you must cook it quickly.
"The Book of Life: Vol. I Mind and Body; Vol. II Love and Society"
Upton Sinclair
13. What digestive juices "melt" fats?
"A Handbook of Health"
Woods Hutchinson