legal action

The US ‘FEDERAL TRADE COMMISSION’ has issued an important statement about homeopathic products. The full text with references can be found here; below are a few quotes which I thought were crucial:

“…Homeopathy, which dates back to the late-eighteenth century, is based on the view that disease symptoms can be treated by minute doses of substances that produce similar symptoms when provided in larger doses to healthy people.  Many homeopathic products are diluted to such an extent that they no longer contain detectable levels of the initial substance.  In general, homeopathic product claims are not based on modern scientific methods and are not accepted by modern medical experts, but homeopathy nevertheless has many adherents…

Efficacy and safety claims for homeopathic drugs are held to the same standards as similar claims for non-homeopathic drugs.  As articulated in the Advertising Substantiation Policy Statement, advertisers must have “at least the advertised level of substantiation.”  Absent express or implied reference to a particular level of support, the Commission, in evaluating the types of evidence necessary to substantiate a claim, considers “the type of claim, the product, the consequences of a false claim, the benefits of a truthful claim, the cost of developing substantiation for the claim, and the amount of substantiation experts believe is reasonable.”  For health, safety, or efficacy claims, the FTC has generally required that advertisers possess “competent and reliable scientific evidence,” defined as “tests, analyses, research, or studies that have been conducted and evaluated in an objective manner by qualified persons and [that] are generally accepted in the profession to yield accurate and reliable results.”  In general, for health benefit claims, particularly claims that a product can treat or prevent a disease or its symptoms, the substantiation required has been well-designed human clinical testing.

For the vast majority of OTC homeopathic drugs, the case for efficacy is based solely on traditional homeopathic theories and there are no valid studies using current scientific methods showing the product’s efficacy.  Accordingly, marketing claims that such homeopathic products have a therapeutic effect lack a reasonable basis and are likely misleading in violation of Sections 5 and 12 of the FTC Act.  However, the FTC has long recognized that marketing claims may include additional explanatory information in order to prevent the claims from being misleading.  Accordingly, the promotion of an OTC homeopathic product for an indication that is not substantiated by competent and reliable scientific evidence may not be deceptive if that promotion effectively communicates to consumers that: (1) there is no scientific evidence that the product works and (2) the product’s claims are based only on theories of homeopathy from the 1700s that are not accepted by most modern medical experts.  To be non-misleading, the product and the claims must also comply with requirements for homeopathic products and traditional homeopathic principles.  Of course, adequately substantiated claims for homeopathic products would not require additional explanation.

Perfunctory disclaimers are unlikely to successfully communicate the information necessary to make claims for OTC homeopathic drugs non-misleading.  The Commission notes:

• Any disclosure should stand out and be in close proximity to the efficacy message; to be effective, it may actually need to be incorporated into the efficacy message.

• Marketers should not undercut such qualifications with additional positive statements or consumer endorsements reinforcing a product’s efficacy.

• In light of the inherent contradiction in asserting that a product is effective and also disclosing that there is no scientific evidence for such an assertion, it is possible that depending on how they are presented many of these disclosures will be insufficient to prevent consumer deception.  Marketers are advised to develop extrinsic evidence, such as consumer surveys, to determine the net impressions communicated by their marketing materials.

• The Commission will carefully scrutinize the net impression of OTC homeopathic advertising or other marketing employing disclosures to ensure that it adequately conveys the extremely limited nature of the health claim being asserted.  If, despite a marketer’s disclosures, an ad conveys more substantiation than the marketer has, the marketer will be in violation of the FTC Act.

In summary, there is no basis under the FTC Act to treat OTC homeopathic drugs differently than other health products.  Accordingly, unqualified disease claims made for homeopathic drugs must be substantiated by competent and reliable scientific evidence.  Nevertheless, truthful, nonmisleading, effective disclosure of the basis for an efficacy claim may be possible.  The approach outlined in this Policy Statement is therefore consistent with the First Amendment, and neither limits consumer access to OTC homeopathic products nor conflicts with the FDA’s regulatory scheme.  It would allow a marketer to include an indication for use that is not supported by scientific evidence so long as the marketer effectively communicates the limited basis for the claim in the manner discussed above.”



CBC news (Canada) reported yesterday that, more than a decade ago, the Manitoba Chiropractic Health Care Commission had been tasked to review the cost effectiveness of chiropractic services. It therefore prepared a report in 2004 for the Manitoba province and the Manitoba Chiropractors Association. Since then, this report has been kept secret. The report makes 37 recommendations, including:

  • Manitoba Health should limit its funding to “chiropractic treatment of acute lower back pain.”
  • Manitoba Health should provide “limited coverage of the treatment of neck pain.” The report called the literature around the efficacy of chiropractic care for neck pain “ambiguous or at best weakly supportive” and noted such treatment carried a “not insignificant safety risk.”
  • Manitoba Health should not fund chiropractic treatment anyone under 18 “as the literature does not unequivocally justify” the “efficacy or safety” of such treatment.

A Manitoba Ombudsman’s Office report from 2012 might shed some light on why the Manitoba Chiropractic Health Care Commission’s report was never made public. Someone had attempted to get a copy of the report, but large parts of it were redacted. “Access to this record was refused on the basis that disclosure would be harmful to a third party’s business interest,” the ombudsman report notes, “and harm the economic or financial interests or negotiating position of a public body.”

The report also challenged claims that chiropractic treatments can be address a wide variety of medical conditions. It stated that there was not enough evidence to conclude chiropractic treatments are effective in treating muscle tension, migraines, HIV, carpal tunnel syndrome, gastrointestinal problems, infertility or cancer, or as a preventive care treatment. It also said there was not enough evidence to conclude chiropractic treatments are effective for children.

The report urged Manitoba Health to establish a monitoring system to keep a closer eye on “the advertising practices of the Manitoba Chiropractors Association and its members to ensure claims regarding treatments are restricted to those for which proof of efficacy and safety exist.” It suggested the government should have regulatory powers over chiropractic ads.

A recent CBC I-Team investigation found Manitoba chiropractors advertising treatment for a wide range of conditions including Alzheimer’s, autism and pediatric services. The commission report contained sharp criticisms of previous reports that suggested funding chiropractic care could save the health-care system money. Dr. Pranlal Manga authored two widely cited reports which claim that by offering publicly funded chiropractic care, provinces can cut health-care costs. “The Manga study on Manitoba must be rejected as a guide to public policy,” the commission report states, “because its assumptions, methodology and costing of recommendations are all deeply flawed.” The reports states, “What limited evidence the Commission has suggests he [Manga] grossly exaggerates possible medical savings.” Dr. Manga did not respond to CBC’s repeated attempts to contact him.

The commission report also made recommendations around the use of X-ray machines by chiropractors. It suggested chiropractors not own and operate X-ray machines “Given the restrictive conditions under which X-rays are advisable, their poor correlation with low-back problems, their apparent limitation as a guide to appropriate treatment …[and] the apparent complete lack of monitoring [of] the use of X-ray by chiropractors.”  Instead, it recommended consulting with radiologists when imaging is deemed necessary. “The Commission is of the view that the public interest, and even chiropractic itself, would be better served if chiropractors had access to radiologists for this service, rather than perform it themselves,” the report said.

All three report authors declined comment. Calls to Dave Chomiak, who was health minister at the time the report was prepared, were not returned. In an email to CBC, Manitoba Chiropractors Association president Perry Taylor said, “I personally have never seen this 13-year-old document and [it] pre-dates my time as President. As such I have no comment on this.” The CBC I-Team offered to go through the report with Taylor but he did not respond.


This report seems to confirm much of what we have discussed repeatedly on this blog: Chiropractic is not nearly as effective and safe as chiropractors try to make us believe. To hide this fact is certainly dishonest and unethical, but it is in some ways understandable: this knowledge would directly threaten the income of most chiropractors.

Yesterday I commented on another post: “the conflict of interest seems obvious: if homeopaths speak the truth, they are out of business. therefore, they are taught untruths from the first day of their training and eventually end up believing them. there is only one solution, as far as I can see: regulators must prevent them from making false claims. if not, this will go on for another 200 years and damage many patients’ health”. In the light of the above report, I will now re-phrase this: the conflict of interest seems obvious: if chiropractors allowed the truth to be known, they would soon be out of business. Therefore, they are taught untruths from the first day of their training and many end up believing them. There is only one solution, as far as I can see: regulators must prevent chiropractors from making false claims. If not, this abuse will go on for another 120 years and damage many patients’ health.

On 13 March, the UK Charity Commission published the following announcement:

This consultation is about the Commission’s approach to deciding whether an organisation which uses or promotes CAM therapies is a charity. For an organisation to be charitable, its purposes must be exclusively charitable. Some purposes relate to health and to relieve the needs of the elderly and disabled.

We are seeking views on:

  • the level and nature of evidence to support CAM
  • conflicting and inconsistent evidence
  • alternative therapies and the risk of harm
  • palliative alternative therapy

Last year, lawyers wrote to the Charity Commission on behalf of the Good Thinking Society suggesting that, if the commission refused to revoke the charitable status of organisations that promote homeopathy, it could be subject to a judicial review. The commission responded by announcing their review which will be completed by 1 July 2017.

Charities must meet a “public benefit test”. This means that they must be able to provide evidence that the work they do benefits the public as a whole. Therefore the consultation will have to determine what nature of evidence is required to demonstrate that a CAM-promoting charity provides this benefit.

In a press release, the Charity Commission stated that it will consider what to do in the face of “conflicting or inconsistent” evidence of a treatment’s effectiveness, and whether it should approach “complementary” treatments, intended to work alongside conventional medicine, differently from “alternative” treatments intended to replace it. In my view, however, this distinction is problematic and often impossible. Depending on the clinical situation, almost any given alternative therapy can be used both as a complementary and as an alternative treatment. Some advocates seem to cleverly promote their therapy as complementary (because this is seen as more acceptable), but clearly employ it as an alternative. The dividing line is often far too blurred for this distinction to be practical, and I have therefore long given up making it.

John Maton, the commission’s head of charitable status, said “Our consultation is not about whether complementary and alternative therapies and medicines are ‘good’ or ‘bad’, but about what level of evidence we should require when making assessments about an organisation’s charitable status.” Personally, I am not sure what this means. It sounds suspiciously soft and opens all sorts of escape routes for even the most outright quackery, I fear.

Michael Marshall of the Good Thinking Society said “We are pleased to see the Charity Commission making progress on their review. Too often we have seen little effective action to protect the public from charities whose very purpose is the promotion of potentially dangerous quackery. However, the real progress will come when the commission considers the clear evidence that complementary and alternative medicine organisations currently afforded charitable status often offer therapies that are completely ineffective or even potentially harm the public. We hope that this review leads to a policy to remove such misleading charities from the register.”

On this blog, I have occasionally reported about charities promoting quackery (for instance here, here and here) and pointed out that such activities cannot ever benefit the public. On the contrary, they are a danger to public health and bring many good charities into disrepute. I would therefore encourage everyone to use this unique occasion to write to the Charity Commission and make their views felt.


According to our friend Dana Ullman, “homeopathy has had a long tradition within Russia. Even though it was not officially recognized during the Communist regime, it was tolerated. And perhaps in part because it did not receive governmental sanction, the Russian people developed a trust in homeopathy. Due to the fact that homeopathic physicians worked outside of governmental medicine, homeopathy was a part of Russia’s “new economy”. People had to pay for homeopathic care, rather than receive it for free.

Homeopathy is still the minority practice. I was told that there are approximately one million medical doctors in Russia and its surrounding republics, with 15,000 medical doctors who use homeopathic medicines regularly, and about 3,000 medical doctors who specialize in classical homeopathy.”

But the ‘free ride’ of homeopathy seems to come to an end. We have seen this happening, for instance in the US, UK, Australia, and Germany. And now it is happening also in Russia:

It has just been reported that the Russian Academy of Sciences (RAS) has labelled homeopathic medicine a health hazard. The organization is now petitioning Russia’s Ministry of Health to abandon the use of homeopathic medicine in the country’s state hospitals, the RBC news outlet reported Monday.

A RAS committee warns that some patients were rejecting standard medicine for serious conditions in favour of homeopathic remedies, a move that almost inevitably puts their lives in danger. The committee also noted that, because of sloppy quality control during the manufacturing processes, some unlicensed homeopathic remedies contain toxic substances which harm patients in a direct fashion.

“The principles of homeopathy contradict known chemical, physical and biological laws and persuasive scientific trials proving its effectiveness are not available,” the committee stated in its report.

The move forms part of a growing backlash against homeopathy in Russia. Last month, students at the First Moscow State Medical University filed a petition to ban homeopathic principles from being taught in medical schools. Russia’s Federal Customs Service also introduced new rules in November 2016, forcing manufacturers to prove the effectiveness of any homeopathic products that they wish to sell.

To this, I have little to add; perhaps just this: ABOUT TIME TOO!

Yes, to a large extend, quacks make a living by advertising lies. A paper just published confirms our worst fears.

This survey was aimed at identifying the frequency and qualitative characteristics of marketing claims made by Canadian chiropractors, naturopaths, homeopaths and acupuncturists relating to the diagnosis and treatment of allergy and asthma.

A total of 392 chiropractic, naturopathic, homeopathic and acupuncture clinic websites were located in 10 of the largest metropolitan areas in Canada. The main outcome measures were: mention of allergy, sensitivity or asthma, claim of ability to diagnose allergy, sensitivity or asthma, claim of ability to treat allergy, sensitivity or asthma, and claim of allergy, sensitivity or asthma treatment efficacy. Tests and treatments promoted were noted as qualitative examples.

The results show that naturopath clinic websites had the highest rates of advertising at least one of diagnosis, treatment or efficacy for allergy or sensitivity (85%) and asthma (64%), followed by acupuncturists (68% and 53%, respectively), homeopaths (60% and 54%) and chiropractors (33% and 38%). Search results from Vancouver were most likely to advertise at least one of diagnosis, treatment or efficacy for allergy or sensitivity (72.5%) and asthma (62.5%), and results from London, Ontario were least likely (50% and 40%, respectively). Of the interventions advertised, few are scientifically supported; the majority lack evidence of efficacy, and some are potentially harmful.

[Legend to figure above: Percentage of alternative medicine clinic websites advertising at least one of diagnosis, treatment or efficacy for allergy/sensitivity or asthma. Presenting the data in this way demonstrates that the Canadian naturopath, homeopath and acupuncturist websites studied have >50% rates of making at least one health-related claim for both allergy/sensitivity and asthma.]

The authors concluded that the majority of alternative healthcare clinics studied advertised interventions for allergy and asthma. Many offerings are unproven. A policy response may be warranted in order to safeguard the public interest.

In the discussion section, the authors state: “These claims raise ethical issues, because evidence in support of many of the tests and treatments identified on the websites studied is lacking. For example, food-specific IgG testing was commonly advertised, despite the fact that the Canadian Society of Allergy and Clinical Immunology has recommended not to use this test due to the absence of a body of research supporting it. Live blood analysis, vega/electrodiagnostic testing, intravenous vitamin C, probiotics, homeopathic allergy remedies and several other tests and treatments offered all lack substantial scientific evidence of efficacy. Some of the proposed treatments are so absurd that they lack even the most basic scientific plausibility, such as ionic foot bath detoxification…

Perhaps most concerning is the fact that several proposed treatments for allergy, sensitivity or asthma are potentially harmful. These include intravenous hydrogen peroxide, spinal manipulation and possibly others. Furthermore, a negative effect of the use of invalid and inaccurate allergy testing is the likelihood that such testing will lead to alterations and exclusions in diets, which can subsequently result in malnutrition and other physiological problems…”

This survey originates from Canada, and one might argue that elsewhere the situation is not quite as bad. However, I would doubt it; on the contrary, I would not be surprised to learn that, in some other countries, it is even worse.

Several national regulators have, at long last, become aware of the dangers of advertising of outright quackery. Consequently, some measures are now beginning to be taken against it. I would nevertheless argue that these actions are far too slow and by no means sufficiently effective.

We easily forget that asthma, for instance, is a potentially life-threatening disease. Advertising of bogus claims is therefore  much more than a forgivable exaggeration aimed at maximising the income of alternative practitioners – it is a serious threat to public health.

We must insist that regulators protect us from such quackery and prevent the serious harm it can do.


My first ever scientific paper, a spin-off from my MD thesis, was published exactly 40 years ago. Since then, I have written many more articles. Readers of this blog might think that they are all on alternative medicine, but that is not the case. My most cited paper is (I think) one which combined my research in haemorheology with that in epidemiology. Yet, I would not consider it to be my most important article.

So, what is my most important publication?

It is one that relates to the history of medicine.

How come?

In 1990, I was appointed as chair of Rehabilitation Medicine at the University of Vienna. On the occasion of the official opening of the new 2000-bed university hospital in Vienna, I was asked to say a few words and thought that a review of the history of my department might be a fitting subject. But I was wrong. What I discovered while researching it turned out to be totally unfitting for the event; in fact, it contributed to my decision to leave Vienna in 1993. I did, however, summarize my findings in an article – and it is this paper that I consider my most important publication. Here is its abstract:

Misguided by the notion that the decline of the German race would be prevented by purifying “Aryan blood” and eliminating foreign, particularly Jewish, influences, the Nazis evicted all Jews from universities within their growing empire during the Third Reich. The Medical Faculty of Vienna suffered more than any other European faculty from “race hygiene.” Within weeks of the Nazi annexation of Austria in 1938, 153 of the Faculty’s 197 members were dismissed. By far the most frequent reason for dismissal was Jewish origin. Most victims managed to emigrate, many died in concentration camps, and others committed suicide. The “cleansing” process encountered little resistance, and the vacant posts were quickly filled with persons known not for their medical expertise but for their political trustworthiness. It was in this climate that medical atrocities could be committed. After the collapse of the Third Reich, most members of the Faculty were burdened with a Nazi past. Most remained in office, and those who had to leave were reinstituted swiftly. The Jews evicted in 1938 were discouraged from returning. These events have significantly–and with long-lasting effects–damaged the quality of a once-leading medical school. This story needs to be told to honor its victims and to fortify us so that history does not repeat itself.

As I pointed out in my memoir, it “was not published until 1995, by which time I was no longer at the University of Vienna but had left Austria and gone joyfully back to the U.K. to take up my post at the University of Exeter. When the paper was published, it had a considerable impact and important consequences. On the one hand, I received a torrent of hate-mail and threats, and was even accused by the more sensationalistic elements of the Austrian press of having stolen considerable amounts of money from my department at the University of Vienna – an entirely fabricated story, of course, and so ridiculous that I couldn’t even take it seriously enough to instigate legal action.”

So, what else happened as a consequence of the paper?

The answer is ‘lots’.

The Nazi-dean of the medical faculty in 1938, Eduard Pernkopf,  became the author of one of the world’s best anatomical atlas. Here is a short excerpt from a website on Pernkopf and his work which outlines some of the consequences of my paper:


Following Dr. Edzard Ernst’s, revelations in the Annals of Internal Medicine (1995) about the source of Pernkopf’s “models,” Yad Vashem (the Holocaust Authority in Israel) requested that the Universities of Vienna and Insbruck conduct an independent inquiry to determine who the subjects in Pernkopf’s Atlas were and how they died. The request from Yad Vashem was initially denied; but the issue did not end. The following year, a letter by Dr. Seidelman and Dr. Howard Israel, an oral surgeon at Columbia University published in JAMA (November, 1996) in which they stated: “The abuses of medicine perpetrated during the Hitler regime pervaded the entire medical profession of the Third Reich including the academic elite. One legacy of the tragic era endures today through the continued publication of a critically acclaimed atlas, Pernkopf Anatomy…” Their letter prompted a report by the New York Times (1996).

In 1997, Alfred Ebenbauer, the rector of the University of Vienna, wrote to JAMA indicating that an investigation had been initiated and that preliminary findings indicated that the anatomy department had indeed, routinely received corpses of executed persons, among them renowned dissidents, and “brain preparations derived from children under the euthanasia program in psychiatric institutes were still stored there…” For the first time, he acknowledged publicly systematic suppression and even denial of the university’s Nazi past and its failure to conduct relevant investigations. Ebenbauer explained that this attitude had changed because of ‘‘increasing pressure from abroad’’ and a new political atmosphere in Austria (Ethics and Access…Pernkopf atlas, Bulletin of the Medical Library Association 2001; Hildebrandt, 2006).

Penkopf_Atlas Human Anatomy_neck-shoulderThe final report of University of Vienna investigation found that at least 1,377 bodies of executed victims (guillotined or shot by the Gestapo at a rifle range); about 7,000 bodies of fetuses and children; and “8 victims of Jewish origin” had been received by the Anatomy Institute. A statement for users of Pernkop’s Atlas sent out by the U of V to all libraries states: “it is therefore within the individual user’s ethical responsibility to decide whether and in which way he wishes to use this book.” (Hildebrandt, 2006). Hildebrandt states: “the influx of bodies from executions increased so much during the NS [Nazi] regime that the rooms of the anatomy institute were sometimes overfilled and executions had to be postponed because of this.” However, she notes that the true numbers are not known because of incomplete documentation.

Howard M. Spiro, M.D., director of Yale’s Program for Humanities in Medicine and professor of internal medicine, was among the noted speakers at the convocation in Vienna marking (1998) the 60th anniversary of the dismissal of Jewish faculty members from the Vienna Medical School. In his address The Silence of Words, Dr. Spiro said, “the things that we avoid and don’t talk about are the matters that mean the most to us. The shame that has no vent in words makes other organs weep.” Dr. Spiro acknowledged that current officials of the University of Vienna are attempting to recover information that has either been hidden or destroyed and trying to locate former faculty who were interned and exiled. “There is a new generation that has taken over, and they are not afraid to look into these atrocities.”

It is now understood that many of the incredibly detailed illustrations in Pernkopf’s atlas depicted the bodies of victims of Nazi terror.


Why do I bring this up again today?

For two reasons: firstly, I have been invited to give two lecture about these events in recent weeks. Secondly and much more importantly, we seem to live in times when the threat of fascism in several countries has again become worrisomely acute, and I think reminding people of my conclusion drawn in 1995 might not be a bad idea:

This story needs to be told to honor its victims and to fortify us so that history does not repeat itself.

In 2008, I published a paper entitled ‘CHIROPRACTIC, A CRITICAL EVALUATION’ where I reviewed most aspects of this subject, including the historical context. Here is the passage about the history of chiropractic. I believe it is relevant to much of the current discussions about the value or otherwise of chiropractic.

The history of chiropractic is “rooted in quasi-mystical concepts.”  Bone-setters of various types are part of the folk medicine of most cultures, and bone-setting also formed the basis on which chiropractic developed.

The birthday of chiropractic is said to be September 18, 1895. On this day, D.D. Palmer manipulated the spine of a deaf janitor by the name of Harvey Lillard, allegedly curing him of his deafness. Palmer’s second patient, a man suffering from heart disease, was also cured. About one year later, Palmer opened the first school of chiropractic. There is evidence to suggest that D.D. Palmer had learned manipulative techniques from Andrew Taylor Still, the founder of osteopathy. He combined the skills of a bone-setter with the background of a magnetic healer and claimed that “chiropractic was not evolved from medicine or any other method, except that of magnetic.” He coined the term “innate intelligence” (or “innate”) for the assumed “energy” or “vital force,” which, according to the magnetic healers of that time, enables the body to heal itself. The “innate” defies quantification. “Chiropractic is based on a metaphysical epistemology that is not amenable to positivist research or experiment.”

The “innate” is said to regulate all body functions but, in the presence of “vertebral subluxation,” it cannot function adequately. Chiropractors therefore developed spinal manipulations to correct such subluxations,  which, in their view, block the flow of the “innate.” Chiropractic is “a system of healing based on the premise that the body requires unobstructed flow through the nervous system of innate intelligence.” Anyone who did not believe in the “innate” or in “subluxations” was said to have no legitimate role in chiropractic.

“Innate intelligence” evolved as a theological concept, the representative of Universal Intelligence ( = God) within each person. D.D. Palmer was convinced he had discovered a natural law that pertained to human health in the most general terms. Originally, manipulation was not a technique for treating spinal or musculoskeletal problems, it was a cure for all human illness: “95% of all diseases are caused by displaced vertebrae, the remainder by luxations of other joints.” Early chiropractic pamphlets hardly mention back pain or neck pain, but assert that, “chiropractic could address ailments such as insanity, sexual dysfunction, measles and influenza.” D.D. Palmer was convinced that he had “created a science of principles that has existed as long as the vertebra.” Chiropractors envision man as a microcosm of the universe where “innate intelligence” determines human health as much as “universal intelligence” governs the cosmos; the discovery of the “innate intelligence” represents a discovery of the first order, “a reflection of a critical law that God used to govern natural phenomena.”

Early chiropractic displayed many characteristics of a religion. Both D.D. Palmer and his son, B.J. Palmer, seriously considered establishing  chiropractic as a religion. Chiropractic “incorporated vitalistic concepts of an innate intelligence with religious concepts of universal intelligence,” which substituted for science. D.D. Palmer declared that he had discovered the answer to the timeworn question, “What is life?” and added that chiropractic made “this stage of existence much more efficient in its preparation for the next step – the life beyond.”

Most early and many of today’s chiropractors agree: “Men do not cure. It is that inherent power (derived from the creator) that causes wounds to heal, or a part to be repaired. The Creator…uses the chiropractor as a tool…chiropractic philosophy is truly the missing link between Religion or Power of the various religions.” Today, some chiropractors continue to relate the “innate” to God. Others, however, warn not to “dwindle or dwarf chiropractic by making a religion out of a technique.”

Initially, the success of chiropractic was considerable. By 1925, more than 80 chiropractic schools had been established in the United States. Most were “diploma mills” offering an “easy way to make money,” and many “were at one another’s throats.” Chiropractors believed they had established their own form of science, which emphasized observation rather than experimentation, a vitalistic rather than mechanistic philosophy, and a mutually supportive rather than antagonist relationship between science and religion. The gap between conventional medicine and chiropractic thus widened “from a fissure into a canyon.” The rivalry was not confined to conventional  medicine; “many osteopaths asserted that chiropractic was a bastardized version of osteopathy.”

Rather than arguing over issues such as efficacy, education, or professional authority, the American Medical Association insisted that all competent health care providers must have adequate knowledge of the essential subjects such as anatomy, physiology, pathology, chemistry, and bacteriology. By that token, the American Medical Association claimed, chiropractors were not fit for practice. Some “martyrs,” including D.D. Palmer himself, went to jail for practicing medicine without a licence.

Chiropractors countered that doctors were merely defending their patch for obvious financial reasons (ironically, chiropractors today often earn more than conventional doctors), that orthodox science was morally corrupt and lacked open-mindedness. They attacked the “germo-anti-toxins-vaxiradi-electro-microbioslush death producers” and promised a medicine “destined to the grandest and greatest of this or any age.”

Eventually, the escalating battle against the medical establishment was won in “the trial of the century.” In 1987, sections of the U.S. medical establishment were found “guilty of conspiracy against chiropractors,” a decision which was upheld by the U.S. Supreme Court in 1990. In other countries, similar legal battles were fought, usually with similar outcomes. Only rarely did they not result in the defeat of the “establishment:” In 1990, a Japanese Ministry of Health report found that chiropractic is “not based on the knowledge of human anatomy but subjective and unscientific.”

These victories came at the price of “taming” and “medicalizing” chiropractic. In turn, this formed the basis of a conflict within the chiropractic profession – the dispute between “mixers” and “straights” – a conflict which continues to the present day.

The “straights” religiously adhere to D.D. Palmer’s notions of the “innate intelligence” and view subluxation as the sole cause and manipulation as the sole cure of all human disease. They do not mix any non-chiropractic techniques into their therapeutic repertoire, dismiss physical examination (beyond searching for subluxations) and think medical diagnosis is irrelevant for chiropractic. The “mixers” are somewhat more open to science and conventional medicine, use treatments other than spinal manipulation, and tend to see chiropractors as back pain specialists. Father and son Palmer warned that the “mixers” were “polluting and diluting the sacred teachings” of chiropractic. Many chiropractors agreed that the mixers were “bringing discredit to the chiropractic.”

The “straights” are now in the minority but nevertheless exert an important influence. They have, for instance, recently achieved election victories within the British General Chiropractic Council. Today, two different chiropractic professions exist side by sided “one that wishes to preserve the non-empirical, non-positivist, vitalist foundations (the straights) and the other that wishes to be reckoned as medical physicians and wishes to utilize the techniques and mechanistic viewpoint of orthodox medicine (the mixers).” The International Chiropractic Association represents the “straights” and the American Chiropractic Association the “mixers.”

(for references, see the original article)

Ad hominem attacks, I have previously pointed out, are victories of reason over unreason. And they are used frequently by supporters of alternative medicine!

If you doubt it, see for yourself.

I recently posted a comment on new Nice guidelines. It generated lots of comments, and mostly they were rational discussions of the issues involved. This changed abruptly when, on 16 May, Mel’s comment started a new, concerted wave of discussion at a time when the usual debate had already subsided. In the course of this new and heated debate, I was repeatedly accused of being rude.

As I have stated repeatedly on this blog, I try to keep rudeness out of the comments as much as I can. Therefore, the claim surprised me and today I reviewed the entire comment section selecting all potential ad hominem attacks. Here are the results:


Peter Deadman on Tuesday 17 May 2016 at 12:55 Edward Ernst, I always thought you were a bully and a fraud. You’re very macho when it comes to slapping down people who may have experiential reasons for supporting acupuncture and other therapies but don’t have the skill to challenge you on the clinical evidence. Now as soon as somebody does, you back off, cry ‘enough’, say you can’t possibly comment till some undetermined future date and generally act like a wuss. I say put up or shut up. I’d prefer the former because it would be good to see you eat crow but I lean towards the latter because of the substantial harm you are causing and the beautiful silence that would ensue if you did indeed go quiet.

tonto on Tuesday 17 May 2016 at 13:19 You appear as weak in your arguments, as some pendulum swinging, new age dowser, who vainly holds sticks to their guns, not because they can back their position up with scientific evidence, but because it is what they “believe”.

Jill Onyett on Tuesday 17 May 2016 at 14:29 …an unfortunate creature too keen on the sound of his own voice.

Tracey Phillips on Tuesday 17 May 2016 at 13:16 …to date you have been fairly opinionated …

Peter Deadman on Tuesday 17 May 2016 at 16:34  I made an ad hominem response because your blog is all about you as a person. You are constantly rude to others and bypass or ignore responses that you don’t like. It’s you who makes it hominem.

Peter Deadman on Tuesday 17 May 2016 at 16:52 You are hyper-emotional, extremely biased, hostile and contemptuous of anyone you think ‘beneath you’. You gloat over people’s real or imagined inconsistencies and generally come across as a nasty piece of work.

Peter Deadman on Tuesday 17 May 2016 at 19:30 How can such a childish provocateur remain in his post. It demeans the University and it’s time they let him go.

Kylee Junghans on Wednesday 18 May 2016 at 08:42 …you, kind Sir, with your rhetoric and tantrums, are exhibiting a prime example of confirmation bias.

Peter Deadman on Wednesday 18 May 2016 at 08:48 [Ernst] professes a scholarly detachment, a commitment to evidence and an open mind, but in fact is deeply biased… He clearly loves his childish provocative stance and is as far from a disinterested observer as it’s possible to be. I wouldn’t waste my time or breath on him if he didn’t have an influence that far exceeds his worth.

Carol Cooke on Wednesday 18 May 2016 at 09:27 I have followed this discussion with interest. Some of the rudest and most discourteous posts I can see are from Mr Ernst himself. But I get that, I imagine you seek to maintain a bold and authoritative tone simply by dismissing others. Being a bit controversial in your discourse has obviously served you well in that you have built a media profile on it.


Edzard on Wednesday 18 May 2016 at 09:18 “it is also difficult to get a man to read something, when he is foaming from his mouth”.

I know, this is not really ‘ad hominem’ but I could not find anything more dramatic. Surely, some will disagree this me here, and I do invite them to cite my rudeness from this threat, if they spot it. You are more than welcome!


You may think this is a bit trivial, but I disagree. The main reason I did this little exercise is to demonstrate a point which I think is important and carries a relevant lesson for future comments and discussions:


I know this sounds simpler than it is, and I am far from being immune to the problem, but we owe it to reason to give it a try.


What a question, you might say. And you would be right, it’s a most awkward one, so much so that I cannot answer it for myself.


Here is the story:

Ten years ago, with the help of S Lejeune and an EU grant, my team conducted a Cochrane review of Laertrile. To do the ‘ground work’, we hired an Italian research assistant, S Milazzo, who was supervised mainly by my research fellow Katja Schmidt. Consequently, the review was published under the names of all main contributors: Milazzo, Ernst, Lejeune, Schmidt.

In 2011, an update was due for which the help of Dr Markus Horneber, the head of a German research team investigating alt med in relation to cancer, was recruited. By then, Milazzo and Schmidt had left my unit and, with my consent, Horneber, Milazzo and Schmidt took charge of the review. I was then sent a draft of their update and did a revision of it which consisted mostly in checking the facts and making linguistic changes. The article was then published under the following authorship: Milazzo S, Ernst E, Lejeune S, Boehm K, Horneber M (Katja had married meanwhile, so Boehm and Schmidt are the same person).

A few days ago, I noticed that a further update had been published in 2015. Amazingly, I had not been told, asked to contribute, or informed that my name as co-author had been scrapped. The authors of the new update are simply Milazzo and Horneber (the latter being the senior author). Katja Boehm had apparently indicated that she did no longer want to be involved; I am not sure what happened to Lejeune.

I know Markus Horneber since donkey’s years and had co-authored several other papers with him in the past, so I (admittedly miffed about my discovery) sent him an email and asked him whether he did not consider this behaviour to amount to plagiarism. His reply was, in my view, unhelpful in explaining why I had not been asked to get involved and Horneber asked me to withdraw the allegation of plagiarism (which I had not even made) – or else he would take legal action (this was the moment when I got truly suspicious).

Next, I contacted the responsible editor at the Cochrane Collaboration, not least because Horneber had claimed that she had condoned the disputed change of authorship. Her reply confirmed that “excluding previous authors without giving them a chance to comment is not normal Cochrane policy” and that she did, in fact, not condone the omission of my name from the list of co-authors.

The question that I am asking myself (not for the first time, I am afraid – a similar, arguably worse case has been described in the comments section of this post) is the following: IS THIS A CASE OF PLAGIARISM OR NOT? In the name of honesty, transparency and science, it requires an answer, I think.

Even after contemplating it for several days, I seem to be unable to find a conclusive response. On the one hand, I did clearly not contribute to the latest (2015) update and should therefore not be a co-author. On the other hand, I feel that I should have been asked to contribute, in which case I would certainly have done so and remained a co-author.

For a fuller understanding of this case, I here copy the various sections of the abstracts of the 2011 update (marked OLD) and the 2015 update without my co-authorship (marked NEW):



Laetrile is the name for a semi-synthetic compound which is chemically related to amygdalin, a cyanogenic glycoside from the kernels of apricots and various other species of the genus Prunus. Laetrile and amygdalin are promoted under various names for the treatment of cancer although there is no evidence for its efficacy. Due to possible cyanide poisoning, laetrile can be dangerous.


Laetrile is the name for a semi-synthetic compound which is chemically related to amygdalin, a cyanogenic glycoside from the kernels of apricots and various other species of the genus Prunus. Laetrile and amygdalin are promoted under various names for the treatment of cancer although there is no evidence for its efficacy. Due to possible cyanide poisoning, laetrile can be dangerous.



To assess the alleged anti-cancer effect and possible adverse effects of laetrile and amygdalin.


To assess the alleged anti-cancer effect and possible adverse effects of laetrile and amygdalin.



We searched the following databases: CENTRAL (2011, Issue 1); MEDLINE (1951-2011); EMBASE (1980-2011); AMED; Scirus; CancerLit; CINAHL (all from 1982-2011); CAMbase (from 1998-2011); the MetaRegister; the National Research Register; and our own files. We examined reference lists of included studies and review articles and we contacted experts in the field for knowledge of additional studies. We did not impose any restrictions of timer or language.


We searched the following databases: CENTRAL (2014, Issue 9); MEDLINE (1951-2014); EMBASE (1980-2014); AMED; Scirus; CINAHL (all from 1982-2015); CAMbase (from 1998-2015); the MetaRegister; the National Research Register; and our own files. We examined reference lists of included studies and review articles and we contacted experts in the field for knowledge of additional studies. We did not impose any restrictions of timer or language.



Randomized controlled trials (RCTs) and quasi-RCTs.


Randomized controlled trials (RCTs) and quasi-RCTs.



We searched eight databases and two registers for studies testing laetrile or amygdalin for the treatment of cancer. Two review authors screened and assessed articles for inclusion criteria.


We searched eight databases and two registers for studies testing laetrile or amygdalin for the treatment of cancer. Two review authors screened and assessed articles for inclusion criteria.



We located over 200 references, 63 were evaluated in the original review and an additional 6 in this update. However, we did not identify any studies that met our inclusion criteria.


We located over 200 references, 63 were evaluated in the original review, 6 in the 2011 and none in this update. However, we did not identify any studies that met our inclusion criteria.



The claims that laetrile or amygdalin have beneficial effects for cancer patients are not currently supported by sound clinical data. There is a considerable risk of serious adverse effects from cyanide poisoning after laetrile or amygdalin, especially after oral ingestion. The risk-benefit balance of laetrile or amygdalin as a treatment for cancer is therefore unambiguously negative.


The claims that laetrile or amygdalin have beneficial effects for cancer patients are not currently supported by sound clinical data. There is a considerable risk of serious adverse effects from cyanide poisoning after laetrile or amygdalin, especially after oral ingestion. The risk-benefit balance of laetrile or amygdalin as a treatment for cancer is therefore unambiguously negative.





After the response from the Cochrane editor, I asked Horneber whether he wanted to make a further comment because I was thinking to blog about this. So far, I have not received a reply.

Who – apart from quacks – would not want to get rid of all quackery, once and for all? It would be a huge improvement to medicine, save thousands of lives, and reduce our expenditure for health care considerably.

But how? How can we possibly get rid of something that is as ancient as medicine itself?


All we need to do is to employ the existing ethical imperatives. I am thinking in particular about INFORMED CONSENT.

Informed consent is a process for obtaining permission from a patient before treating him/her. It requires the patient’s clear and full understanding of the relevant facts, implications, and consequences of the treatment. It is a ‘condition sine qua non’; no health care professional must commence a treatment without it.

And how would informed consent get rid of all quackery?

This is perhaps best explained by giving an example. Imagine a patient is about to receive a quack treatment – let’s take crystal healing (we could have chosen any other implausible non-evidence based therapy, e. g. homeopathy, chiropractic, Bach Flower Remedies, faith-healing, etc.) – for his/her condition – let’s say diabetes (we could have chosen any other condition, e. g. cancer, asthma, insomnia, etc.). Informed consent would require that, before starting the intervention, the therapist informs the patient about the relevant facts, implications and consequences of having crystal healing for diabetes. This would include the following:

  • the therapy is not plausible, it is not in line with the laws of nature as we understand them today,
  • there is no evidence that the treatment will cure your condition or ease your symptoms beyond a placebo-effect,
  • the treatment may harm you in several ways: 1) it might cause direct harm (unlikely with crystal healing but not with chiropractic, for instance), 2) it will harm your finances because the therapist wants to be paid, 3) most importantly, if you believe that it could help you and therefore forego effective therapy for your diabetes, it could easily kill you within a few days.

It is impossible to dispute that these facts are true and relevant, I think. And if they are relevant, the practitioner must convey them in such a way that they are fully appreciated by the patient. If the patient comprehends the implications fully, he/she is unlikely to agree to the treatment. If most patients refuse to be treated, the market for crystal healing quickly collapses, and crystal healers move into other, more productive jobs. This might even help the general economy!

But quacks are not in the habit of obtaining fully informed consent, I hear you say. I agree, and this is why they must be taught to do so in their quack colleges. If informed consent was taught to all budding quacks, they would soon realise that quackery is not a viable business and go to a proper school where they lean something useful (this too might help the economy). If that happens, the quack colleges would soon run out of money and close.

Meanwhile, one could remind the existing quacks that they break the law, if they neglect informed consent. In the interest of the patient, one could closely monitor the consent giving process, and even think of increasingly heavy finds for those who break the law.

As we see, almost all the means for rendering health care quack-free already exist. All we need to do is implement them. That shouldn’t be difficult, should it?


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