The Page I Send People To Says Reiki Does Not Work: Reading the NCCIH Summary Honestly

Key Takeaways

The US National Center for Complementary and Integrative Health states plainly that Reiki has not been clearly shown to be effective for any health-related purpose, and that there is no scientific evidence supporting the existence of the energy field thought to play a role in it.
The same page also states that Reiki has not been shown to have any harmful effects, which is a different finding and is worth reading with equal care.
The page's last update is dated December 2018, which means a practitioner quoting it should say so, and should not present it as reflecting research published since.

Key Terms Explained

靈氣 (Reiki) / Universal Energy — the practice this page is describing, and the word whose second character NCCIH is referring to when it mentions an energy field.

手当て (Teate) / Hand Placement — laying hands lightly on or just above the body, which is exactly how NCCIH describes the physical practice.

施術者 (Sejutsusha) / Practitioner — the person giving Reiki, and, in this context, the person deciding how honestly to quote a federal agency.

五戒 (Gokai) / The Five Precepts — Usui's daily principles, which contain no claims about outcomes and therefore nothing for an agency to evaluate.

The Page I Send People To

When someone asks me whether Reiki works, I send them to a US government website that says it does not.

This surprises people, including some practitioners. The page belongs to the National Center for Complementary and Integrative Health, part of the National Institutes of Health, and it is the closest thing to an official Western assessment of the practice that exists in plain language.

I send it because the alternative is worse. If someone Googles the question, they will find a great many pages written by people with something to sell, in both directions. NCCIH has no stake in the answer. Reading it first means whatever I say afterwards is being weighed against a fixed point rather than against nothing.

After more than twenty years of daily practice, what Reiki is to me is simple: connecting with the energy of the universe and letting it turn my life in a better direction. Nothing more mystical than that, and nothing less. That statement and the NCCIH page can coexist, and this article is about how.

Related: Your First Reiki Session, Step by Step: What Happens, and What I Never Promise explains this in detail.

What the Page Actually Says

The description

NCCIH describes Reiki as a complementary health approach in which practitioners place their hands lightly on or just above a person, with the goal of directing energy to help facilitate the person's own healing response. It notes that the practice is based on an Eastern belief in an energy that supports the body's innate or natural healing abilities.

I have no quarrel with that description. It is accurate, it is neutral, and it uses the word "belief" where a belief is what is being described. A great many practitioner-written descriptions would benefit from the same restraint.

The bottom line

The page's Bottom Line section states that Reiki has not been clearly shown to be effective for any health-related purpose. It notes that Reiki has been studied for a variety of conditions, including pain, anxiety and depression, and that most of the research has not been of high quality, with inconsistent results.

Three separate claims sit in those sentences, and they are worth separating.

The first is that effectiveness has not been clearly shown. That is a statement about the state of evidence, not about the practice. It says the case has not been made, which is different from saying the case has been refuted.

The second is that the research quality has mostly been low. Anyone who has read individual Reiki studies will recognise this. Small samples, no control group, practitioner and researcher being the same person, self-reported outcomes. I have written about specific examples of exactly these problems.

The third is that results have been inconsistent. This matches what the meta-analyses show when you read past their headline figures: effects that appear in some populations and not others, with wide confidence intervals.

The sentence about the energy field

The page then states that there is no scientific evidence supporting the existence of the energy field thought to play a role in Reiki.

This is the sentence practitioners flinch at, and I think it should be quoted rather than avoided.

It is also worth reading precisely. It says there is no scientific evidence supporting the existence of the field. It does not say the field has been searched for and shown to be absent. Those are different statements, and the difference is not a loophole I am using to rescue anything — it is simply what the sentence says.

What follows from it, honestly, is this: if I describe the mechanism of Reiki in terms of an energy field and present that as established, I am saying something the evidence does not support. I can hold the belief. I cannot present it as a finding.

The safety line

The page states that Reiki has not been shown to have any harmful effects.

This gets quoted selectively in the other direction, so let me be equally careful. "Has not been shown to have harmful effects" is not the same as "is proven safe," and it says nothing about the danger of using Reiki instead of medical treatment. That risk is real and is not a property of the practice itself; it is a property of how someone uses it.

The Date at the Bottom of the Page

Here is the part that almost nobody who quotes this page mentions.

The page carries a "Last Updated" date of December 2018.

That matters in both directions, and honesty requires saying both. It means the assessment predates a considerable amount of research published since, including the meta-analyses that practitioners like to cite. Anyone quoting NCCIH as the current state of the evidence is quoting a page from 2018.

It also means practitioners cannot claim the agency has reviewed recent work and remained unconvinced. As far as this page shows, it has not reviewed it at all.

I raise this not to weaken the page but because leaving it out would be dishonest, and because I have criticised others for exactly this omission. A practitioner who quotes the favourable half of a study and drops the caveats is doing the same thing as a sceptic who quotes a 2018 assessment as though it were written last month.

How I Talk About This With Students

Someone always asks, at some point in a course, whether I believe what NCCIH says.

My answer is that belief is the wrong frame. NCCIH is describing the state of published evidence as of a particular date, and on that question I have no basis to disagree. The research has mostly been poor. The results have been inconsistent. Nobody has demonstrated the field.

What I add is that this is not the only kind of knowledge, and that I am careful about which kind I am claiming.

When I say that my life turned in a better direction over twenty years of practice, that is a first-person account. It is real, it is mine, and it carries no weight at all as evidence for anyone else. When I say that many clients describe feeling lighter afterwards, that is an observation about what people report. When I say Reiki treats an illness, that would be a claim about mechanism and outcome, and I do not make it.

The precepts help here more than any argument. 今日だけは (kyō dake wa), just for today. Do not anger, do not worry. There is nothing in that formulation that requires anyone to believe anything about biology.

Living outside Japan for a long time has made this easier rather than harder. When you are the only person in the room from your tradition, you learn quickly that overclaiming is expensive and that people trust careful description far more than they trust enthusiasm.

FAQ

Q: Should Reiki practitioners tell clients about the NCCIH page? A: I do, and I would recommend it. Clients who are inclined to search will find it anyway, and finding it after you have implied that the evidence is stronger than it is costs you more than showing it to them first. Mention its date as well. A practitioner who volunteers the least favourable mainstream summary, accurately and with its limitations, is in a much stronger position than one who is caught not having mentioned it.

Q: If there is no evidence for the energy field, why practise at all? A: Because a mechanism being undemonstrated is not the same as an activity being worthless. Twenty unhurried minutes with hands resting on you, in a quiet room, from someone paying attention, is a reasonable thing to receive whatever is or is not happening at the level of energy. I practise because my life has been better for it, which is a first-person reason and one I do not offer as evidence for anybody else.

Q: Is it safe to use Reiki alongside medical treatment? A: NCCIH states that Reiki has not been shown to have any harmful effects, and I am not aware of a reason it would interfere with treatment. The real risk is substitution — using it instead of care that is needed — and that risk comes from how a person uses the practice rather than from the practice itself. Tell your medical team what you are doing, and never delay or replace treatment on the strength of anything a practitioner tells you, including me.

Key Insights to Remember

Quoting your critics accurately is a strength, not a concession. NCCIH says Reiki has not been clearly shown to be effective for any health-related purpose, and that no scientific evidence supports the energy field. I can repeat both sentences, in full, and still practise every morning. A position that cannot survive its own best counterargument was never a position; it was a hope with a defence around it.
The date on a source is part of the source. This page was last updated in December 2018, and every quotation of it should carry that date. The same discipline that requires a practitioner to state a study's sample size requires stating an assessment's vintage. Sceptics skip this as often as believers skip confidence intervals, and both omissions are the same error.
Separate what kind of claim you are making. A first-person account, an observation about what people report, and a claim about mechanism are three different currencies, and the trouble starts when they are spent as though they were interchangeable. Twenty years of my own life is not evidence for you. What clients say is not proof of cause. Keeping those straight is, for me, the practical form of honesty in this work.