Caffeine is perfectly legal everywhere - yet isn't it against the moral code for LDS to drink caffeinated beverages?
Legality has nothing to do with it. The word of wisdom is defined as disallowing coffee, green and black tea whether hot or cold, tobacco in any form, alcohol, and recreational drugs (that's the best way to describe it anyway). Prescription drugs are fine as long as they are used as prescribed.
I was actually going to pose this question. I have some mormon friends who would be fine smoking pot if they lived I. Colorado. As far as I know, there is no actual rule against it. It is not expressly forbidden anywhere.
21.3.11
Word of Wisdom
The only official interpretation of “hot drinks” (D&C 89:9) in the Word of Wisdom is the statement made by early Church leaders that the term “hot drinks” means tea and coffee.
Members should not use any substance that contains illegal drugs. Nor should members use harmful or habit-forming substances except under the care of a competent physician.
Unless you don't think weed is habit forming, which a lot of scientific minds think.
In my opinion, the most unbiased book on this and other related topics is The Science of Marijuana (2008). The Science of Marijuana is written by Leslie L. Iverson, a professor of pharmacology at the University of Cambridge in England. In the book, he reviews decades of international research on marijuana, both laboratory research and survey research. Based on his review of the scientific literature, between 10 to 30% of regular users will develop dependency.
...
It is estimated that 32% of tobacco users will become addicted, 23% of heroin users, 17% of cocaine users, and 15% of alcohol users
From the church handbook of instructions:
https://www.lds.org/handbook/handbo...rch/selected-church-policies?lang=eng#21.3.11
The last sentence pretty much bans recreational marijuana, even in places where it's legal.
...Members should not use any substance that contains illegal drugs. Nor should members use harmful or habit-forming substances except under the care of a competent physician.
A quick websearch on "is marijuana habit forming" popped this up as the top link: https://www.psychologytoday.com/blog/the-teenage-mind/201012/is-marijuana-addictive.
So by those numbers marijuana is roughly the same addictiveness as alcohol, cocaine, and heroin. One might dispute those specific numbers, but I don't think it can be disputed that it is addictive to some extent.