The Word of Wisdom is a dietary law given to adherents of the Latter Day Saint movement (also known as Mormonism), which states that "flesh also of beasts and of fowls of the air... are to be used sparingly," and that "it is pleasing unto that they should not be used, only in times of winter, or of cold, or famine". Unlike injunctions against tobacco and alcohol, compliance with this part of the Doctrine and Covenants has never been made mandatory by The Church of Jesus Christ of Latter-day Saints (LDS Church), the largest Latter Day Saint denomination. Many LDS Church leaders have expressed their views on the subject of meat, but since Joseph F. Smith became church president in 1901, emphasis on refraining from meat has largely been dropped. An official church publication states, "methods of refrigeration now make it possible to preserve meat in any season". As recently as 2012, official church spokesperson Michael Otterson stated "the church has also encouraged limiting meat consumption in favor of grains, fruits and vegetables." Of note is that the LDS Church owns and operates Deseret Ranches in central Florida, which is one of the largest cow-calf operations in the United States.