The word of wisdom was given in kirtland 20 years ago for the benefit of all Saints. When we live 20 or 50 years longer we shall see that we do not understand much of the word of wisdom.... We are forbidden to use meat in hot weather. Hot drinks & tobaco is not good for man. You should not eat to overload your stomach. Their is a greater lack in my system of wisdom of tempering my food & Exercise than in Eating meat or tobaco... So with tea Coffee & sugar. You must raise & make it or go without it. .
[Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]