Latter-day Saints vs. Seventh-day Adventists: Beliefs and Practices

Latter-day Saints and Seventh-day Adventists are both 19th-century American religious movements with strong emphasis on health, scripture study, and distinctive lifestyle practices. Both have health codes, robust educational institutions, and members known for longevity and wellness. Despite these surface similarities, they differ significantly in theology, worship practice, and authority structures.

Origins and History

The Latter-day Saint movement was founded by Joseph Smith in 1830 in upstate New York. It emphasizes divine restoration of the church, new revelation through a living prophet, and continued scriptural additions. Seventh-day Adventism emerged from the Millerite movement of the 1840s, founded on the conviction that the Second Coming of Jesus was imminent and that the biblical Sabbath (Saturday) had been wrongly neglected by mainstream Christianity. Ellen G. White, a foundational Adventist figure, claimed prophetic visions and wrote extensively on health and theology. While Adventists revere White's writings, they do not recognize a current living prophet in the way Latter-day Saints do.

Worship Day: Saturday vs. Sunday

A defining difference is worship practice. Seventh-day Adventists observe the Sabbath on Saturday (from Friday sunset to Saturday sunset), based on their interpretation that the Fourth Commandment's requirement to rest on the seventh day remains binding. Many Adventists avoid work, entertainment, and secular activities on Saturday. Latter-day Saints worship on Sunday, which evolved from early Christian practice and is understood within the LDS framework as the day of resurrection. This single difference reflects deeper theological divergence: Adventists emphasize continuity with Old Testament law; Latter-day Saints emphasize the new covenant established by Christ's resurrection.

Health and Lifestyle

Both groups practice dietary restraint and health consciousness, but with different emphases. The LDS Church's health code, called the Word of Wisdom, prohibits alcohol, coffee, tea, and tobacco. It encourages fruits, vegetables, and grains. The code does not mandate vegetarianism, though many Latter-day Saints eat meat moderately. Seventh-day Adventists often practice vegetarianism or veganism, viewing this as alignment with Genesis's original diet. Adventists also prohibit alcohol, tobacco, and coffee (as a stimulant). Many Adventists avoid unclean meats (pork, shellfish) based on Levitical law. Both groups are recognized for exceptional health outcomes and longevity, supported by active lifestyles and whole foods.

Views on Scripture and Prophecy

Latter-day Saints recognize four volumes of scripture: the Bible, Book of Mormon, Doctrine and Covenants, and Pearl of Great Price. They understand the church to be led by a living prophet who receives ongoing revelation. Seventh-day Adventists regard the Bible as the only authoritative scripture. They revere Ellen G. White's writings as inspired but do not classify them as scripture. Adventists expect no new living prophet; instead, they understand authority to rest in the Bible and collective church decision-making. This difference profoundly shapes how each tradition approaches new doctrinal developments: Latter-day Saints adapt doctrine through new revelation; Adventists test all things against the Bible.

Afterlife Beliefs

Latter-day Saints teach a three-tiered afterlife: the celestial kingdom (highest, for those who fully lived the gospel), the terrestrial kingdom (for good-hearted but disobedient people), and the telestial kingdom (for those who rejected Christ). All will be resurrected and inherit one of these kingdoms. Seventh-day Adventists believe in "soul sleep" — after death, the soul rests until the resurrection at Christ's return. At that time, the righteous will be taken to heaven, and the wicked will be destroyed. Adventism emphasizes the imminence of Christ's return and focuses heavily on end-times prophecy. Latter-day Saints believe in the Second Coming but prioritize building Zion — establishing the church and society according to gospel principles — over speculation about the timing.