Wikipedia wrote:
A contemporary example of coffee prohibition can be found in The Church of Jesus Christ of Latter-day Saints, a religion with over 13 million followers worldwide, which calls for coffee abstinence. The organization claims that it is both physically and spiritually unhealthy to consume coffee.[52] This comes from the Mormon doctrine of health, given in 1833 by Mormon founder Joseph Smith, in a revelation called the Word of Wisdom. It does not identify coffee by name, but includes the statement that "hot drinks are not for the belly", which has been interpreted to forbid both coffee and tea.[52]