Does the Church of Jesus Christ of Latter-day Saints discourage non-members from partaking of the sacrament?
I have come across this question a time or two on my mission. Some members feel that only members of the Church of Jesus Christ of Latter-day Saints should be able to partake of this sacred ordinance. Others say that it is acceptable. After doing a bit of research the answer is clear.
Handbook 2: Administering in the Church says, "Although the sacrament is for Church members, the bishopric should not announce that it will be passed to members only, and nothing should be done to prevent nonmembers from partaking of it."
So there you have it. Members and nonmembers alike are allowed to partake of the holy sacrament.