Understanding why members of The Church of Jesus Christ of Latter-day Saints—often referred to as Mormons—abstain from coffee requires looking past the simple surface of a dietary restriction. It is a practice rooted in a 19th-century revelation known as the Word of Wisdom, which has evolved from a piece of fatherly advice into a defining characteristic of the faith's identity and a prerequisite for its highest forms of worship.

The foundation in the Word of Wisdom

The prohibition of coffee finds its source in a document titled Section 89 of the Doctrine and Covenants, a book of scripture used by Latter-day Saints alongside the Bible. Received by Joseph Smith in 1833 in Kirtland, Ohio, this revelation is formally called "A Word of Wisdom, for the benefit of the council of high priests, assembled in Kirtland, and the church, and also the saints in Zion."

At the time of its reception, the American frontier was a place of intense social and temperance movements. The revelation was presented as a "principle with promise," focusing on the health and spiritual well-being of the believers. It outlined several do's and don'ts: it encouraged the use of herbs, fruits, and grains, suggested that meat be used sparingly, and specifically warned against the use of wine, strong drinks (alcohol), tobacco, and "hot drinks."

Decoding the term "hot drinks"

The phrase that specifically impacts the morning routine of millions is found in Verse 9: "And again, hot drinks are not for the body or belly." To a modern reader, this might sound like a ban on soup or hot chocolate, but context is essential. In the 1830s, the primary hot beverages consumed in the United States and within the fledgling church community were coffee and tea (specifically tea from the Camellia sinensis plant).

Shortly after the revelation was given, church leaders provided clarity. In 1842, Hyrum Smith, a prominent leader, taught that the term "hot drinks" specifically referred to coffee and tea. This interpretation was echoed by other early leaders and has remained the official stance of the church for nearly two centuries. Therefore, the restriction is not about the temperature of the liquid—iced coffee is still prohibited—but about the specific substance of the coffee bean itself.

Is it about caffeine? The common misconception

One of the most frequent questions from those outside the faith is whether Mormons avoid coffee because of the caffeine. While many individual members choose to avoid caffeine in all forms for personal health reasons, the official doctrine of the church distinguishes between the beverage and the stimulant.

For many decades, there was significant cultural ambiguity within the church regarding caffeinated sodas. Some church-owned institutions, such as Brigham Young University, did not sell caffeinated soft drinks for a period, leading many to believe that caffeine was the prohibited element. However, in 2012, the church issued a clarification stating that the Word of Wisdom does not mention caffeine. This was followed by a 2019 update in the church’s official magazine, New Era, which explicitly stated that the prohibition is specifically on coffee and tea, regardless of caffeine content.

This means that while a member can drink a caffeinated soda or an energy drink without violating the core tenets of the Word of Wisdom, they cannot drink a decaffeinated cup of coffee. To many, this seems like a logical inconsistency, but within the faith, it is understood as a matter of religious obedience to a specific commandment rather than a scientific dietary ban on a single molecule.

From suggestion to commandment

It is historically interesting to note that the Word of Wisdom was not always a mandatory requirement. For the first several decades of the church's existence, it was viewed as a divine recommendation. Historical records show that many early members, including some leaders, struggled to give up coffee, tea, and tobacco immediately. It was seen as a journey of self-improvement.

By the early 20th century, under the leadership of President Heber J. Grant, the observance of the Word of Wisdom became a requirement for entering a temple—the most sacred space for Latter-day Saints. This elevated the status of the coffee ban from a health suggestion to a marker of spiritual worthiness. Today, when members are interviewed by their local bishops to receive a "temple recommend," they are asked specifically if they understand and keep the Word of Wisdom. Abstaining from coffee is a non-negotiable part of that commitment.

Navigating the modern coffee shop

As coffee culture has exploded globally, the definition of what constitutes "drinking coffee" has become more complex. The church has had to provide specific guidance on modern beverages that might hide their coffee content under fancy names. Official church guidance now specifies that any drink with a name ending in "-ccino," as well as lattes, espressos, mochas, and cold brews, are considered coffee and are thus prohibited.

This creates a unique social dynamic. In a professional world where the "coffee meeting" is the standard unit of networking, Latter-day Saints often opt for herbal tea (which is allowed because it is not made from the tea plant), hot chocolate, or fruit juice. This simple choice often serves as a quiet witness of their faith, frequently prompting the very question this article addresses.

The promised physical and spiritual blessings

The Word of Wisdom is often described by members not as a list of restrictions, but as a "law of health" accompanied by specific promises. These promises are both physical and spiritual.

Physical Health and Longevity Scientifically, the health habits of Latter-day Saints have been the subject of significant study. A 14-year study conducted by UCLA, which followed 10,000 members in California, found that those who followed the Word of Wisdom had an increased life expectancy of 8 to 11 years compared to the general U.S. population. They also demonstrated lower rates of cardiovascular disease and various types of cancer. While the study looked at the lifestyle as a whole—including the avoidance of tobacco and alcohol—the collective impact of these dietary choices is statistically significant.

Spiritual Sensitivity Beyond the physical, the revelation promises "wisdom and great treasures of knowledge, even hidden treasures." The underlying belief is that the body is a temple for the spirit. By keeping the body free from substances that are addictive or harmful, members believe they are more capable of receiving spiritual inspiration and maintaining a clear mind. To a Latter-day Saint, avoiding coffee is an act of discipline that helps keep the "channels of communication" with the divine open.

Addressing decaf and coffee-flavored products

The question of decaffeinated coffee is a common point of internal discussion. Because the church teaches that "coffee is coffee," decaf versions are generally avoided by faithful members. The reasoning is that the process of removing the caffeine does not change the identity of the drink as coffee, which was the substance named by the prophets.

Coffee-flavored foods, such as coffee ice cream or coffee-flavored candy, fall into a more personal area of interpretation. While the Word of Wisdom specifically mentions "drinks," many members choose to avoid coffee-flavored items altogether to stay far away from the prohibited substance, while others may not see a small amount of flavoring as a violation of the commandment. However, when it comes to the beverage itself, the line is clearly drawn.

The role of herbal tea

It is important to distinguish between coffee, tea, and herbal tea. The church clarifies that "tea" refers to the beverage made from the Camellia sinensis plant, which includes black, green, white, and oolong teas. These are all considered "hot drinks" in the context of the 1833 revelation and are avoided.

In contrast, herbal teas—which are infusions of roots, barks, seeds, or flowers from other plants—are generally considered acceptable. Many members enjoy peppermint, chamomile, or hibiscus teas. This distinction further reinforces the idea that the ban is not about the temperature of the liquid or the presence of caffeine, but about the specific plants identified in the religious tradition.

Why it matters in 2026

In a world increasingly focused on biohacking and optimized nutrition, the Word of Wisdom remains a remarkably stable health code. While modern science occasionally flips its stance on the health benefits of coffee—with some studies suggesting it's good for the liver and others warning of its effects on sleep and anxiety—the Latter-day Saint position remains unchanged.

For the member, the "why" is ultimately about a covenant relationship with God. It is a daily, physical reminder of their commitment to a higher law. Every time a member chooses a different beverage at a breakfast meeting, they are exercising their agency in a way that aligns with their spiritual goals.

Cultural identity and social distinction

Beyond health and doctrine, the coffee ban serves a sociological function. It creates a "distinct people." Much like the dietary laws of Judaism (Kosher) or Islam (Halal), the Word of Wisdom helps define the boundaries of the community. It is a shared sacrifice that fosters a sense of belonging among members.

In areas with high concentrations of Latter-day Saints, such as Utah or Idaho, this has even influenced the local economy. These regions have seen a massive surge in "dirty soda" shops—establishments that sell large sodas mixed with cream, fruit purees, and syrups. These shops provide the social environment of a coffee house and the caffeine kick many desire, but without violating the specific religious prohibition against coffee beans.

Summary of common questions

  • Can Mormons drink iced coffee? No. The term "hot drinks" refers to the substance, not the temperature.
  • Is caffeine banned? No. Caffeinated sodas and energy drinks are not prohibited by church doctrine, though moderation is encouraged.
  • Is decaf okay? No. Official guidance considers decaf coffee to still be coffee.
  • What about green tea? Green tea is made from the same plant as black tea and is therefore prohibited.
  • Why is the rule so specific? For members, it is an issue of obedience to modern revelation and a way to maintain spiritual and physical purity.

The bigger picture of health

It is easy to get caught up in the minutiae of what is in the cup, but the Word of Wisdom is a holistic code. It encourages plenty of sleep (D&C 88:124), regular exercise, and a diet centered on grains and seasonal fruits. When viewed as a comprehensive lifestyle, the avoidance of coffee is just one part of a larger effort to treat the human body with respect and reverence.

By following this code, Latter-day Saints believe they are better prepared to handle the challenges of life. The promises of being able to "run and not be weary, and walk and not faint" are taken both literally and figuratively. Physical stamina is a blessing, but so is the spiritual stamina to navigate a complex modern world.

In the end, why don't Mormons drink coffee? They don't drink it because they believe that God, through a modern prophet, asked them to avoid it for their own good. Whether it's for the 11 extra years of life, the clarity of mind, or the simple act of keeping a promise, the absence of coffee in a Latter-day Saint's life is a small price to pay for what they consider to be a wealth of spiritual and physical rewards.