scientific misconduct

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Shiatsu is one of those alternative therapies where there is almost no research. Therefore, every new study is of interest, and I was delighted to find this new trial.

Italian researchers tested the efficacy and safety of combining shiatsu and amitriptyline to treat refractory primary headaches in a single-blind, randomized, pilot study. Subjects with a diagnosis of primary headache and who experienced lack of response to ≥2 different prophylactic drugs were randomized in a 1:1:1 ratio to receive one of the following treatments:

  1. shiatsu plus amitriptyline,
  2. shiatsu alone,
  3. amitriptyline alone

The treatment period lasted 3 months and the primary endpoint was the proportion of patients experiencing ≥50%-reduction in headache days. Secondary endpoints were days with headache per month, visual analogue scale, and number of pain killers taken per month.

After randomization, 37 subjects were allocated to shiatsu plus amitriptyline (n = 11), shiatsu alone (n = 13), and amitriptyline alone (n = 13). Randomization ensured well-balanced demographic and clinical characteristics at baseline.

The results show that all the three groups improved in terms of headache frequency, visual analogue scale score, and number of pain killers and there was no between-group difference in the primary endpoint. Shiatsu (alone or in combination) was superior to amitriptyline in reducing the number of pain killers taken per month. Seven (19%) subjects reported adverse events, all attributable to amitriptyline, while no side effects were related with shiatsu treatment.

The authors concluded that shiatsu is a safe and potentially useful alternative approach for refractory headache. However, there is no evidence of an additive or synergistic effect of combining shiatsu and amitriptyline. These findings are only preliminary and should be interpreted cautiously due to the small sample size of the population included in our study.

Yes, I would advocate great caution indeed!

The results could easily be said to demonstrate that shiatsu is NOT effective. There is NO difference between the groups when looking at the primary endpoint. This plus the lack of a placebo-group renders the findings uninterpretable:

  • If we take the comparison 2 versus 3, this might indicate efficacy of shiatsu.
  • If we take the comparison 1 versus 3, it would indicate the opposite.
  • If we finally take the comparison 1 versus 2, it would suggest that the drug was ineffective.

So, we can take our pick!

Moreover, I do object to the authors’ conclusion that “shiatsu is a safe”. For such a statement, we would need sample sizes that are about two dimensions greater that those of this study.

So, what might be an acceptable conclusion from this trial? I see only one that is in accordance with the design and the results of this study:



The aim of this pragmatic study was “to investigate the effectiveness of acupuncture in addition to routine care in patients with allergic asthma compared to treatment with routine care alone.”

Patients with allergic asthma were included in a controlled trial and randomized to receive up to 15 acupuncture sessions over 3 months plus routine care, or to a control group receiving routine care alone. Patients who did not consent to randomization received acupuncture treatment for the first 3 months and were followed as a cohort. All trial patients were allowed to receive routine care in addition to study treatment. The primary endpoint was the asthma quality of life questionnaire (AQLQ, range: 1–7) at 3 months. Secondary endpoints included general health related to quality of life (Short-Form-36, SF-36, range 0–100). Outcome parameters were assessed at baseline and at 3 and 6 months.

A total of 1,445 patients were randomized and included in the analysis (184 patients randomized to acupuncture plus routine care and 173 to routine care alone, and 1,088 in the nonrandomized acupuncture plus routine care group). In the randomized part, acupuncture was associated with an improvement in the AQLQ score compared to the control group (difference acupuncture vs. control group 0.7 [95% confidence interval (CI) 0.5–1.0]) as well as in the physical component scale and the mental component scale of the SF-36 (physical: 2.5 [1.0–4.0]; mental 4.0 [2.1–6.0]) after 3 months. Treatment success was maintained throughout 6 months. Patients not consenting to randomization showed similar improvements as the randomized acupuncture group.

The authors concluded that in patients with allergic asthma, additional acupuncture treatment to routine care was associated with increased disease-specific and health-related quality of life compared to treatment with routine care alone.

We have been over this so many times (see for instance here, here and here) that I am almost a little embarrassed to explain it again: it is fairly easy to design an RCT such that it can only produce a positive result. The currently most popular way to achieve this aim in alternative medicine research is to do a ‘A+B versus B’ study, where A = the experimental treatment, and B = routine care. As A always amounts to more than nothing – in the above trial acupuncture would have placebo effects and the extra attention would also amount to something – A+B must always be more than B alone. The easiest way of thinking of this is to imagine that A and B are both finite amounts of money; everyone can understand that A+B must always be more than B!

Why then do acupuncture researchers not get the point? Are they that stupid? I happen to know some of the authors of the above paper personally, and I can assure you, they are not stupid!

So, why?

I am afraid there is only one reason I can think of: they know perfectly well that such an RCT can only produce a positive finding, and precisely that is their reason for conducting such a study. In other words, they are not using science to test a hypothesis, they deliberately abuse it to promote their pet therapy or hypothesis.

As I stated above, it is fairly easy to design an RCT such that it can only produce a positive result. Yet, it is arguably also unethical, perhaps even fraudulent, to do this. In my view, such RCTs amount to pseudoscience and scientific misconduct.

‘What Doctors Don’t Tell You’ (WDDTY) have been shown to be strangely economical with the truth many times before (for instance here, here and here). Now they have published an article entitled ‘Ombudsman investigates ‘flawed’ homeopathic study that claimed it doesn’t work’ It attacks in no uncertain terms the ‘NHMRC Statement on Homeopathy and NHMRC Information Paper – Evidence on the effectiveness of homeopathy for treating health conditions’ which I believe to be a sound evaluation of homeopathy and therefore have mentioned repeatedly on this blog. Here is what WDDTY stated:


A major and influential review of homeopathy concluded that the controversial therapy doesn’t work—but it was so riddled with error and bad science that it’s sparked an official ombudsman investigation.

The world’s media announced that homeopathy was a scam after the Australia government’s National Health and Medical Research Council (NHMRC) published its findings in 2015 that “there are no health conditions for which there is reliable evidence that homeopathy is effective.”

But now the Commonwealth Ombudsman is investigating the review’s procedures after receiving reports of inaccuracies, mishandling of evidence and conflicts of interest.

The review has been triggered by the Australian Homeopathic Association (AHA), supported by the Homeopathic Research Institute (HRI), which began questioning the review’s processes after several solid studies that demonstrated homeopathy’s benefits had been overlooked.

The NHMRC review team set arbitrary parameters that only studies that involved more than 150 people—and which met standards that even drug trials rarely achieve—would be considered. Those requirements reduced the number of qualifying studies to just five—from an initial pool of more than 1,800 trials—and none of these showed that homeopathy was effective.

One of the NHMRC’s own reviewers produced a mysterious first report that has never been published, and hasn’t been released despite Freedom of Information requests.

And the AHA has discovered that Prof Peter Brooks, chair of the NHMRC committee that carried out the homeopathy review, never declared that he was a member of the anti-homeopathy lobby group, Friends of Science in Medicine.

There are solid studies that demonstrate homeopathy is effective against childhood diarrhea, sinusitis and hay fever—but they all involve fewer than 150 people, said HRI chief executive Rachel Roberts. “The public has a right to know that there are high quality studies showing homeopathy works for some medical conditions—information that was lost only due to NHMRC’s mishandling of the evidence.”

The homeopaths aren’t alone in challenging the NHMRC review: Australia’s independent Cochrane Centre said its conclusions are not an accurate reflection of the evidence, and a second expert also said he felt “uncertain of the definitive nature of the report’s conclusions.”


As it happens, I am in contact with the lead author of this report, Paul Glasziou, not least because he very kindly wrote the foreword for my book HOMEOPATHY, THE UNDILUTED FACTS. So, we corresponded and discussed the latest WDDTY diatribe. Thus I am now in a position to put a few things straight (I hope Paul does not mind).

ISSUE 1. – The NHMRC review team set arbitrary parameters that only studies involving more than 150 people—and which met standards that even drug trials rarely achieve—would be considered.

The truth is that report focused on systematic reviews of trials, not individual trials. The 57 included systematic reviews found 176 individual trials which covered 61 conditions: an average of about 3 trials per condition. But some conditions only had 1 trial, and one small trial would, of course, not be considered a reasonable basis for reliable conclusions. GRADE – the international standard for assessing evidence – downgrades reviews for “imprecision” – the GRADE Handbook suggests “whenever there are sample sizes that are less than 400, review authors and guideline developers should certainly consider rating down for imprecision.” Hence the criterion of 150 which the Australians decided to use is considerably more lenient than the current GRADE guideline.

ISSUE 2 – Those requirements reduced the number of qualifying studies to just five—from an initial pool of more than 1,800 trials—and none of these showed that homeopathy was effective.

This is simply not correct. The report found 57 systematic reviews that contained 176 individual trials, not 5. These 176 trials, which covered 61 conditions, formed the body of evidence for the NHMRC report’s conclusions.

ISSUE 3 – There are solid studies that demonstrate homeopathy is effective against childhood diarrhoea, sinusitis and hay fever—but they all involve fewer than 150 people, said HRI chief executive Rachel Roberts.

The NHMRC report focused on systematic reviews that covered all trials for individual conditions. Given the conventional p-value of 0.05, one would expect 1 in 20 single trials to be “false positives”. So with 176 trials, we expect about 9 “false positive” trials. But using systematic reviews that combine all trials for individual conditions, reduces this risk of false positives. Most national evidence review bodies require more than 1 trial, e.g, the FDA requires 2 positive trials, whereas many others require a systematic review which has at least 2 trials. Replication of findings is obviously a cornerstone of science.

ISSUE 4 The homeopaths aren’t alone in challenging the NHMRC review: Australia’s independent Cochrane Centre said its conclusions are not an accurate reflection of the evidence, and a second expert also said he felt “uncertain of the definitive nature of the report’s conclusions.”

The truth is that the Cochrane Centre, which provided an independent check during the processes of the NHMRC review, concluded that “Overall, the conclusions arising from the review appear justified based on the evidence presented.”


The title of the press-release was impressive: ‘Columbia and Harvard Researchers Find Yoga and Controlled Breathing Reduce Depressive Symptoms’. It certainly awoke my interest and I looked up the original article. Sadly, it also awoke the interest of many journalists, and the study was reported widely – and, as we shall see, mostly wrongly.

According to its authors, the aims of this study were “to assess the effects of an intervention of Iyengar yoga and coherent breathing at five breaths per minute on depressive symptoms and to determine optimal intervention yoga dosing for future studies in individuals with major depressive disorder (MDD)”.

Thirty two subjects were randomized to either the high-dose group (HDG) or low-dose group (LDG) for a 12-week intervention of three or two intervention classes per week, respectively. Eligible subjects were 18–64 years old with MDD, had baseline Beck Depression Inventory-II (BDI-II) scores ≥14, and were either on no antidepressant medications or on a stable dose of antidepressants for ≥3 months. The intervention included 90-min classes plus homework. Outcome measures were BDI-II scores and intervention compliance.

Fifteen HDG and 15 LDG subjects completed the intervention. BDI-II scores at screening and compliance did not differ between groups. BDI-II scores declined significantly from screening (24.6 ± 1.7) to week 12 (6.0 ± 3.8) for the HDG (–18.6 ± 6.6; p < 0.001), and from screening (27.7 ± 2.1) to week 12 (10.1 ± 7.9) in the LDG. There were no significant differences between groups, based on response (i.e., >50% decrease in BDI-II scores; p = 0.65) for the HDG (13/15 subjects) and LDG (11/15 subjects) or remission (i.e., number of subjects with BDI-II scores <14; p = 1.00) for the HDG (14/15 subjects) and LDG (13/15 subjects) after the 12-week intervention, although a greater number of subjects in the HDG had 12-week BDI-II scores ≤10 (p = 0.04).

The authors concluded that this dosing study provides evidence that participation in an intervention composed of Iyengar yoga and coherent breathing is associated with a significant reduction in depressive symptoms for individuals with MDD, both on and off antidepressant medications. The HDG and LDG showed no significant differences in compliance or in rates of response or remission. Although the HDG had significantly more subjects with BDI-II scores ≤10 at week 12, twice weekly classes (plus home practice) may rates of response or remission. Although the HDG, thrice weekly classes (plus home practice) had significantly more subjects with BDI-II scores ≤10 at week 12, the LDG, twice weekly classes (plus home practice) may constitute a less burdensome but still effective way to gain the mood benefits from the intervention. This study supports the use of an Iyengar yoga and coherent breathing intervention as a treatment to alleviate depressive symptoms in MDD.

The authors also warn that this study must be interpreted with caution and point out several limitations:

  • the small sample size,
  • the lack of an active non-yoga control (both groups received Iyengar yoga plus coherent breathing),
  • the supportive group environment and multiple subject interactions with research staff each week could have contributed to the reduction in depressive symptoms,
  • the results cannot be generalized to MDD with more acute suicidality or more severe symptoms.

In the press-release, we are told that “The practical findings for this integrative health intervention are that it worked for participants who were both on and off antidepressant medications, and for those time-pressed, the two times per week dose also performed well,” says The Journal of Alternative and Complementary Medicine Editor-in-Chief John Weeks

At the end of the paper, we learn that the authors, Dr. Brown and Dr. Gerbarg, teach and have published Breath∼Body∼Mind©, a technique that uses coherent breathing. Dr. Streeter is certified to teach Breath∼Body∼Mind©. No competing financial interests exist for the remaining authors.

Taking all of these issues into account, my take on this study is different and a little more critical:

  • The observed effects might have nothing at all to do with the specific intervention tested.
  • The trial was poorly designed.
  • The aims of the study are not within reach of its methodology.
  • The trial lacked a proper control group.
  • It was published in a journal that has no credibility.
  • The limitations outlined by the authors are merely the tip of an entire iceberg of fatal flaws.
  • The press-release is irresponsibly exaggerated.
  • The authors have little incentive to truly test their therapy and seem to use research as a means of promoting their business.

Aromatherapy is popular and pleasant – but does it have real health effects? The last time I tried to find an answer to this question was in 2012. At that time, our systematic review concluded that “the evidence is not sufficiently convincing that aromatherapy is an effective therapy for any condition.” But 5 years can be a long time in research, and more up-to-date information would perhaps be helpful.

This systematic review of 2017 aimed to provide an analysis of the clinical evidence on the efficacy of aromatherapy specifically for depressive symptoms on any type of patients. The authors searched 5 databases for relevant studies Outcome measures included scales measuring depressive symptoms levels. Twelve randomized controlled trials (RCTs) were included. Aromatherapy was administered by inhalation (5 studies) or massage (7 studies). Seven RCTs showed improvement in depressive symptoms. The quality of half of the studies was low, and the administration protocols varied considerably among the studies. Different assessment tools were employed in the studies. In 6 of the RCTs, aromatherapy was compared to no intervention.

Despite these caveats, the authors concluded that aromatherapy showed potential to be used as an effective therapeutic option for the relief of depressive symptoms in a wide variety of subjects. Particularly, aromatherapy massage showed to have more beneficial effects than inhalation aromatherapy.

Apart from the poor English, this paper is irritating because of the almost total lack of critical input. Given that half of the trials were of poor quality (only one was given the full points on the quality scale) and many totally failed to control for placebo-effects, I think that calling aromatherapy an effective therapeutic option for the relief of depressive symptoms is simply not warranted. In fact, it is highly misleading and, given the fact that depression is a life-threatening condition, it seems unethical and dangerous.

Considering these facts, my conclusion remains that “the evidence is not sufficiently convincing that aromatherapy is an effective therapy for any condition, including depression.”

Dana Ullman is an indefatigable promotor of bogus claims and an unwitting contributor of hilarity. Therefore he has become a regular feature of this blog (see for instance here, here and here). His latest laughable assertion is that lead and other poisonings can be successfully treated with homeopathy.

Just to make sure: lead poisoning is no joke. The greatest risk is to brain development in babies, where irreversible damage can occur. Higher levels can damage the kidneys and nervous system in both children and adults. Very high lead levels may cause seizures, unconsciousness and death.

In view of this, Ullman’s claim is surprising, to say the least. In order to persuade the unsuspecting public of his notion, Ullman first cites a review of basic research on homeopathy and toxins published in Human and Experimental Toxicology. “Of forty high-quality studies, 27 showed positive results from homeopathic treatment”, Ullman states.

Now, now, now Dana!

Has your mom not taught you that telling porkies is forbidden?

Or did you perhaps miss this line in the article’s abstract? “The quality of evidence in these studies was low with only 43% achieving one half of the maximum possible quality score and only 31% reported in a fashion that permitted re-evaluation of the data. Very few studies were independently replicated using comparable models.”

Hardly ‘high quality studies’, wouldn’t you agree?

But this review was of pre-clinical studies; what about the much more important clinical evidence?

Here Ullman cites one trial where a potentized homeopathic remedy, Arsenicum Album 30C, was administered to  55 people who were entered into a double-blind, placebo-controlled trial. According to Ullman, the homeopathically treated group “experienced higher excretion of arsenic in their urine for the first eleven days, compared to those given a placebo.”

Na, na, na, Dana, this is getting serious!!!

Another porky – and not even a little one.

The authors of this study clearly stated that, at the end of the 11-day RCT, there was no significant difference between the homeopathy and the placebo group: “The differences in the concentration between the two groups (drug versus placebo) were generally a little higher during the first week, but subsequently the differences were not so palpable, particularly at the 11th day.” And for those who are a bit slow on the uptake, they even included a graph that makes it abundantly clear.

The only other clinical study cited by Ullman in support of his surprising claim is a double-blind randomized trial which was conducted with 131 workers who suffered lead poisoning at the Ajax battery plant in Bauru, São Paulo State, Brazil. Subjects were prescribed homeopathic doses of lead (Plumbum metallicum 15C) or placebo which they took orally for 35 days. The results of this RCT show that homeopathy is not better than placebo.

So, we seem to have all of two RCTs on the subject (I did a quick Medline-search and also found no further RCTs), and both are negative.

Anyone who is not given to compulsive porky-telling would, I guess, conclude from this evidence that people suffering from lead poisoning should urgently see conventional experts and avoid homeopaths at all costs – not so Dana Ullman who boldly concludes his article with these words:

“As an adjunct to conventional medical treatment, professional homeopathic care is recommended for people who have been exposed (or think they have been exposed) to toxic substances… Even if you do not have a professional homeopath in your town, many homeopathic practitioners “see” their patients via Skype or do consultations over the telephone. Unlike acupuncturists, who put needles in you, or chiropractors, who adjust your spine, homeopaths are not “hands-on”: they simply need to conduct a detailed interview… If your symptoms are serious or potentially serious, it is important to see a professional homeopath and/or physician. While a homeopath will commonly prescribe a safe homeopathic dose of the toxic substance to which one was exposed, the homeopath may instead decide that a different substance more closely matches the patient’s unique symptoms…”

It takes a lot these days to make me speechless but there, Dana, you almost succeeded!

Yes, homeopaths are incredibly fond of the notion that homeopathy has been proven to work in numerous population studies of outbreaks of infectious diseases. The argument is bound to come up in any discussion with a ‘well-informed’ homeopathy fan. Therefore, it might be worth addressing it once and for all.

This website offers a fairly good summary of what homeopaths consider to be convincing evidence. It also provides links to the original articles which is valuable for all who want to study them in full detail. I will therefore present the crucial passage here unchanged.


By the end of year 2014, there have been 19 papers published on Epidemiological studies on 7 epidemic diseases (scarlet fever, typhus fever, Cholera, Dengue, meningococcal, influenza and Leptospirosis) in 11 peer-reviewed (beyond year 1893) journals in evidence of Homeopathy including 2 Randomised Controlled Trials.

1. Samuel Hahnemann, “The Cure and prevention of scarlet fever”, Zeitschrift für Praktischen Medizin (Journal of Practical Medicine), 1801, Republished in Lesser Writings. B.Jain Publishing, New Delhi

Preventive use of homeopathy was first applied in 1799 during an epidemic of scarlet fever in Königslütter, Germany, when Dr. Hahnemann prescribed a single dose of Belladonna, as the remedy of the genus epidemicus to susceptible children in the town with more than 95% success rate. In this paper, he also specified how the Belladonna has to be potentised to 1/24,000,000 dilution. His recommended dose of Belladonna was 0.0416 nanograms to be repeated every 72 hrs. This is the first recorded nano dose of medicine used in treatment of any disease [6]. It was another 125 years before Gladys Henry and George Frederick developed a vaccine for scarlet fever in 1924.

2. Samuel Hahnemann, “Scarlet fever and Purpura miliaris, two different diseases”, Zeitschrift für Praktischen Medizin, vol. 24, part. 1, 1806

3. Samuel Hahnemann, “Observations on scarlet fever”, Allgemeine Reichanzeiger (General Reich Gazette), No. 160, Germany, 1808

4. Samuel Hahnemann, “Reply to a question about the prophylactic for scarlet fever”, Zeitschrift für Praktischen Medizin, vol. 27, part. 4, p. 152-156, 1808

5. Samuel Hahnemann, “Treatment of typhus & fever at present prevailing”, Allgemeine Reichanzeiger, No. 6, Jan. 1814.

6. Hufeland, Prophylactic powers of Belladonna against Scarlet Fever , The Lancet, 1829
The proper use of belladonna has, in most cases, prevented infection. Numerous observations have shown that, by the general use of belladonna, epidemics of scarlet fever have actually been arrested. In those few instances where the use of belladonna was insufficient to prevent infection, the disease has been invariably slight. The Prussian (German Empire) Government ordered the use of the prophylactic during all scarlet fever epidemics

7. Samuel Hahnemann, “Cure and prevention of Asiatic cholera”, Archiv für die homöopathische Heilkunst (Archives for the Homoeopathic Healing Art), Vol. 11, part 1, 1831.
Cuprum 30c once every week as preventive medicine

8. Samuel Hahnemann, “On the contagiousness of cholera”. British Homoeopathic Journal, Vol. 7, 1849

9. Samuel Hahnemann, “Appeal to Thinking Philanthropists Respecting the Mode of Propagation of the Asiatic Cholera”, 20 pages, 1831. Republished in British Homoeopathic Journal, Oct 1849.

He said, “On board ships – in those confined spaces, filled with mouldy watery vapours, the cholera-miasm finds a favourable element for its multiplication, and grows into an enormously increased brood of those excessively minute, invisible, living creatures, so inimical to human life, of which the contagious matter of the cholera most probably consists millions of those miasmatic animated beings, which, at first developed on the broad marshy banks or the tepid Ganges– on board these ships, I say, this concentrated aggravated miasm kills several of the crew …” [7].
It was another 59 years (1890) before Koch saw these organisms, and later on orthodox medicine gave them the name ‘germs’

10. Charles Woodhull Eaton, The Facts about Variolinum, Transactions of the American Institute of Homoeopathy, 1907
2806 patients were treated prophylactically with Variolinum 30 (a nosode) for prevention of smallpox in Iowa. Of the 547 patients definitely exposed, only 14 developed the disease. Efficacy rate of 97.5%

11. Taylor Smith A, Poliomyelitis and prophylaxis British Homoeopathic Journal, 1950
In 1950 during an epidemic of poliomyelitis, Dr Taylor Smith of Johannesburg, South Africa protected 82 people with homoeopathic Lathyrus sativus. Of the 82 so immunised, 12 came into direct contact with disease. None were infected.

12. Oscillococcinum 200c in the treatment of influenza during epidemic in France from 1984-1987, British Journal of Clinical Pharmacology (1989)
A DBRPCT, Oscillococcinum 200c taken twice daily for 5 days significantly increased the rate of cure within two days (n=487, 237 treated and 241 on placebo), absence of symptoms at 48 hours, relative risk estimate significantly favour homeopathy (p=0.048), no pain and no fever (p=0.048), recovery rate (headache, stiffness, articular pain, shivering reduction) at 48 hours better in homeopathy group (p=0.032)

13. Bernard Leary, Cholera 1854 Update, British Homoeopathic Journal, 1994
Sir William Wilde, the well-known allopathic doctor of Dublin, which in his work entitled “Austria and its Institutions”, wrote: “Upon comparing the report of the treatment of Cholera in the Homeopathic hospital testified to by two allopathic medical inspectors appointed by Government with that of the treatment of the same disease in the other hospitals of Vienna during the same period the epidemic of 1836, it appeared that while two-thirds of the cases treated by Dr. Fleischmann the physician of the Homeopathic hospital, recovered, two-thirds of those treated by the ordinary methods in the other hospitals died.”

14. Meningococcinum – its protective effect against meningococcal disease, Homeopathy Links, 2001 (2001)
A total of 65,826 people between the ages of 0–20 were immunised homeopathically to protect against meningococcal disease while 23,532 were not. Over a year period, 4 out of 65,826 protected homeopathically developed meningococcal infection. 20 out of 23,532 not protected developed meningococcal infection. Based on the infection rate in the unprotected group, 58 cases of infection could have been expected in the homeopathically protected group. Instead, there were only four cases of meningococcal infection. Statistical analysis showed that homeopathic immunisation offered 95% protection in the first six months and 91% protection over the year against meningococcal disease. [8]

15. Contribution of homeopathy to the control of an outbreak of dengue epidemic in Macaé, Rio de Janeiro, Brazil in 2007-8 , International Journal of High Dilution Research, 2008
In a campaign ‘Homeopathy campaign against dengue’ by Brazilian Govt, “156,000 doses of homeopathic remedy were freely distributed in April and May 2007 to asymptomatic patients and 129 doses to symptomatic patients treated in outpatient clinics, according to the notion of genus epidemicus . The remedy used was a homeopathic complex against dengue containing Phosphorus 30c, Crotalus horridus 30c and Eupatorium perfoliatum 30c. The incidence of the disease in the first three months of 2008 fell 93% by comparison to the corresponding period in 2007, whereas in the rest of the State of Rio de Janeiro there was an increase of 128%.”

16. Marino R. Eupatorium perfoliatum 30c for the Dengue Epidemics in Brazil in 2007. International Journal of High Dilution Research, 2008
In May 2001, prophylactic use of Eupatorium perfoliatum 30c single dose was given during a dengue outbreak to 40% of residents in the most highly affected neighbourhood which resulted in significant decrease in dengue incidence by 81.5% (p<0.0001) when compared with those neighbourhoods that did not receive homeopathic prophylaxis.

17. Bracho et. al. Application of 200C potency of bacteria for Leptospirosis epidemic control in Cuba 2007-8 (2010)
Conducted by the Finlay Institute, a vaccines producer in Cuba gave 2.308562 million (70% of the target population above the age of 1 year) people in Cuba given two doses (1 dose=5 drops) of 200C potency of a nosode prepared from Leptospirosis bacteria, each (7-9 days apart), for protection against Leptospirosis (fever+jaundice+ inflammation in kidney+enlargement of spleen) with 84% decrease in disease incidence and only 10 reported cases. Dramatic decrease in morbidity within two weeks and zero morbidity of hospitalised patients, non-treated (8.8 millions) area saw an increase in number of cases from 309 cases in 2007 to 376 in 2008 representing a 21% increase. The cost of homeopathic immunization =1/15th of conventional vaccine.

18. Effect of individualized homoeopathic treatment in influenza like illness, Indian Journal of Research in Homeopathy (2013)
A multicenter, single blind, randomized, placebo controlled study to evaluate the effect of homoeopathic medicines in the treatment of Influenza like illness and to compare the efficacy of LM (50 millisimal) potency vis-à-vis centesimal (C) potency. In LM group (n=152), C group (n=147) or placebo (n=148) group. The study revealed the significant effect of individualized homoeopathic treatment in the patients suffering from ILI with no marked difference between LM and Centesimal groups. The medicines which were commonly prescribed were: Arsenic album, Bryonia alba, Rhus tox., Belladonna, Nux vomica, Sepia, Phosphorus, Gelsemium, Sulphur, Natrum mur. and Aconitum napellus. [9]

19. Reevaluation of the Effectiveness of Homoeoprophylaxis Against Leptospirosis in Cuba in 2007-8, Journal of Evidence-based Complementary & Alternative Medicine (2014)
The results support the previous conclusions that homoeoprophylaxis can be used to effectively immunize people against targeted infectious diseases such as leptospirosis.

[1] Iman Navab, Lives saved by Homeopathy in Epidemics and Pandemics,

[2] Reshu Agarwal, Natural History of Disease and Homeopathy at different levels of Intervention,

[3] Homoeopathy- Science of Gentle Healing, Deptt. of AYUSH, Ministry of Health & Family Welfare, Govt, of India, 2013,

[4] Conversation with David Little,

[5] Nancy Malik, Principles of Homeopathy Explained, 2015,

[6] Nancy Malik, Recent Advances in Nanoparticle Research in Homeopathy, Homeopathy 4 Everyone, Vol.12, Issue 6, 18 June 2015,

[7] Samuel Hahnemann, “Appeal to Thinking Philanthropists Respecting the Mode of Propagation of the Asiatic Cholera”, 20 pages, 1831, Translated by R E Dudgeon, M.D. in The Lesser Writings of Samuel Hahnemann, 1851, B Jain Publishers, reproduced edition, 2002, p. 758

[8] Fran Sheffield, Homeoprophylaxis: Human Records, Studies and Trials, 2014,

[9] Homoeopathy in Flu-like Illness- Factsheet, Central Council for Research in Homoeopathy, Deptt. of AYUSH, Ministry of Health & Family Welfare, Govt, of India, 2015,


Whenever I read articles of this nature, I get a little embarrassed. It seems obvious to me that the authors of such reviews have done some ‘research’ and believe strongly in the correctness in what they write. It embarrasses me to see how such people, full of good will, can be so naïve, ignorant and wrong. They clearly fail to understand several crucial issues. To me. this seems like someone such as me lecturing others about car mechanics, quantum physics or kite flying. I have no idea about these subjects, and therefore it would be idiotic to lecture others about them. But homeopaths tend to be different! And this is when my embarrassment quickly turns into anger: articles like the above spread nonsense and misguide people about important issues. THEY ARE DANGEROUS! There is little room for embarrassment and plenty of room for criticism. So, let’s criticise the notions advanced above.

In my recent book, I briefly touched upon epidemics in relation to homeopathy:

Epidemics are outbreaks of disease occurring at the same time in one geographical area and affecting large number of people. In homeopathy, epidemics are important because, in its early days, they seemed to provide evidence for the notion that homeopathy is effective. The results of homeopathic treatment seemed often better than those obtained by conventional means. Today we know that this was not necessarily due to the effects of homeopathy per se, but might have been a false impression caused by bias and confounding.

This tells us the main reason why the much-treasured epidemiological evidence of homeopaths is far from compelling. The review above does not mention these caveats at all. But it is lousy also for a whole host of other reasons, for instance:

  • The text contains several errors (which I find too petty to correct here).
  • The list of studies is the result of cherry-picking the evidence.
  • It confuses what epidemiological studies are; RCTs are certainly not epidemiological studies, for instance.
  • It also omits some of the most important epidemiological studies suggesting homeopathy works.
  • It cites texts that are clearly not epidemiological studies.
  • Several studies are on prevention of illness rather than on treatment.
  • Some studies do not even employ homeopathy at all.

In the typical epidemiological case/control study, one large group of patients [A] is retrospectively compared to another group [B]. By large, I mean with a sample size of thousands of patients. In our case, group A has been treated homeopathically, while group B received the treatments available at the time. It is true that several of such reports seemed to suggest that homeopathy works. But this does by no means prove anything; the result might have been due to a range of circumstances, for instance:

  • group A might have been less ill than group B,
  • group A might have been richer and therefore better nourished,
  • group A might have benefitted from better hygiene in the homeopathic hospital,
  • group A might have received better care, e. g. hydration,
  • group B might have received treatments that made the situation not better but worse.

Because these are RETROSPECTIVE studies, there is no way to account for these and many other factors that might have influenced the outcome. This means that epidemiological studies of this nature can generate interesting results which, in turn, need testing in properly controlled studies where these confounding factors are adequately controlled for. Without such tests, they are next to worthless for recommendations regarding clinical practice.

As it happens, the above author also included two RCT in the review (these are NOT epidemiological studies, as I already mentioned). Let’s have a quick look at them.

The first RCT is flawed for a range of reasons and has been criticised many times before. Even its authors state that “the result cannot be explained given our present state of knowledge, but it calls for further rigorously designed clinical studies.” More importantly, the current Cochrane review of Oscillococcinum, the remedy used in this study, concluded: “There is insufficient good evidence to enable robust conclusions to be made about Oscillococcinum® in the prevention or treatment of influenza and influenza-like illness.”

The second RCT is equally flawed; for instance, its results could be due to the concomitant use of paracetamol, and it seems as though the study was not double blind. The findings of this RCT have so far not been confirmed by an independent replication.

What puzzles me most with these regularly voiced notions about the ‘epidemiological evidence’ for homeopathy is not the deplorable ineptitude of those who promote them, but it is this: do homeopaths really believe that conventional medics and scientists would ignore such evidence, if it were sound or even just encouraging? This assumes that all healthcare professionals (except homeopaths) are corrupt and cynical enough not to follow up leads with the potential to change medicine for ever. It assumes that we would supress knowledge that could save the lives of millions for the sole reason that we are against homeopathy or bribed by ‘BIG PHARMA’.

Surely, this shows more clearly than anything else how deluded homeopaths really are!!!


Can intercessory prayer improve the symptoms of sick people?

Why should it? It’s utterly implausible!

Because the clinical evidence says so?

No, the current Cochrane review concluded that [the] findings are equivocal and, although some of the results of individual studies suggest a positive effect of intercessory prayer, the majority do not and the evidence does not support a recommendation either in favour or against the use of intercessory prayer. We are not convinced that further trials of this intervention should be undertaken and would prefer to see any resources available for such a trial used to investigate other questions in health care.

Yet, not all seem to agree with this; and some even continue to investigate prayer as a medical therpy.

For this new study (published in EBCAM), the Iranian investigators randomly assigned 92 patients in 2 groups to receive either 40 mg of propranolol twice a day for 2 month (group “A”) or 40 mg of propranolol twice a day for 2 months with prayer (group “B”). At the beginning of study and 3 months after intervention, patients’ pain was measured using the visual analogue scale.

All patients who participate in present study were Muslim. At the beginning of study and before intervention, the mean score of pain in patients in groups A and B were 5.7 ± 1.6 and 6.5 ± 1.9, respectively. According to results of independent t test, mean score of pain intensity at the beginning of study were similar between patients in 2 groups (P > .05). Three month after intervention, mean score of pain intensity decreased in patients in both groups. At this time, the mean scores of pain intensity were 5.4 ± 1.1 and 4.2 ± 2.3 in patients in groups A and B, respectively. This difference between groups was statistically significant (P < .001).


The above figure shows the pain score in patients before and after the intervention.

The authors concluded that the present study revealed that prayer can be used as a nonpharmacologic pain coping strategy in addition to pharmacologic intervention for this group of patients.

Extraordinary claims require extraordinary proof. This study is, in fact, extraordinary – but only in the sense of being extraordinarily poor, or at least it is extraordinary in its quality of reporting. For instance, all we learn in the full text article about the two treatments applied to the patient groups is this: “The prayer group participated in an 8-week, weekly, intercessory prayer program with each session lasting 45 minutes. Pain reduction was measured at baseline and after 3 months, by registered nurses who were specialist in pain management and did not know which patients were in which groups (control or intervention), using a visual analogue scale.”

Intercessory prayer is the act of praying on behalf of others. This mans that the patients receiving prayer might have been unaware of being ‘treated’. In this case, the patients could have been adequately blinded. But this is not made clear in the article.

More importantly perhaps, the authors fail to provide any numeric results. All that we are given is the above figure. It is not possible therefore to run any type of check on the data. We are simply asked to believe what the authors have written. I for one have great difficulties in doing so. All I do believe in relation to this article is that

  • the journal EBCAM is utter trash,
  • constantly publishing rubbish is unethical and a disservice to everyone,
  • prayer does not need further research of this nature,
  • and poor studies often generate false-positive findings.

This meta-analysis was performed “to ascertain the effectiveness of oral aloe vera consumption on the reduction of fasting blood glucose (FBG) and hemoglobin A1c (HbA1c).”

PubMed, CINAHL, Natural Medicines Comprehensive Database, and Natural Standard databases were searched. The searches were limited to clinical trials or observational studies conducted in humans and published in English. Studies of aloe vera’s effect on FBG, HbA1c, homeostasis model assessment-estimated insulin resistance (HOMA-IR), fasting serum insulin, fructosamine, and oral glucose tolerance test (OGTT) in prediabetic and diabetic populations were examined.

Nine studies were included in the FBG parameter (n = 283); 5 of these studies included HbA1c data (n = 89). Aloe vera decreased FBG by 46.6 mg/dL (p < 0.0001) and HbA1c by 1.05% (p = 0.004). Significant reductions of both endpoints were maintained in all subgroup analyses. Additionally, the data suggested that patients with an FBG ≥200 mg/dL may see a greater benefit. A mean FBG reduction of 109.9 mg/dL was observed in this population (p ≤ 0.0001). There was evidence of publication bias with FBG but not with HbA1c.

The authors concluded that the results of this meta-analysis support the use of oral aloe vera for significantly reducing both FBG (46.6 mg/dL) and HbA1c (1.05%) in prediabetic and diabetic patients. However, given the current overall quality and relative scarcity of data, further clinical studies that are more robust and better controlled are warranted to confirm and further explore these findings.

Oh no, the results do not support the use of aloe vera at all!!


Because this ‘meta-analysis’ is of unacceptably poor quality. Here are just some of the flaws that render it totally useless, particularly for issuing advice such as above:

  • The authors included uncontrolled observational studies which make no attempt to control for non-specific effects.
  • In several studies, the use of concomitant anti-diabetic medications was allowed; therefore it is not possible to establish cause and effect by aloe vera.
  • The search strategy was woefully inadequate; for instance non-English publications were not considered.
  • There was no assessment of the scientific rigor of the included studies; this totally invalidates the reliably of the conclusions.
  • The included studies used preparations of widely different aloe vera preparations, and there is no way of knowing the does of the active ingredients.

Diabetes is a serious condition that affects millions worldwide. If some of these patients are sufficiently gullible to follow the conclusions of this paper, they might be dead within a matter of days. This makes this article one of the most dangerous papers that I have seen in the ‘peer-reviewed’ literature of alternative medicine.

Who publishes such utter and irresponsible rubbish?

You may well ask.

The journal has been discussed on this blog  before for the junk that regularly appears in its pages, and so has its editor in chief. The authors (and the reviewers) are not known to me, but one thing is for sure: they don’t know the first thing about conducting a decent systematic review/meta-analysis.

The common cold is one of the indications for which homeopathy is deemed to be effective… by homeopaths that is! Non-homeopaths are understandably critical about this claim, not least because there is no good evidence for it. But, hold on, there is a new study which might change all this.

This study was recently published in COMPLEMENTARY THERAPIES IN MEDICINE which is supposed to be one of the better journals in this area. According to its authors, it was conducted “to determine if a homeopathic syrup was effective in treating cold symptoms in preschool children.” Children diagnosed with an upper respiratory tract infection were randomized to receive a commercial homeopathic cold syrup containing allium cepa 6X, hepar sulf calc 12X, natrum muriaticum 6X, phosphorous 12X, pulsatilla 6X, sulphur 12X, and hydrastasis 6X or placebo. Parents administered the study medication as needed for 3 days. The primary outcome was change in symptoms one hour after each dose. Parents also assessed the severity of each of the symptoms of runny nose, cough, congestion and sneezing at baseline and twice daily for 3 days, using a 4-point rating scale. A composite cold score was calculated by combining the values for each of the four symptoms. Among 261 eligible participants, data on 957 doses of study medication in 154 children were analyzed. There was no significant difference in improvement one hour after the dose for any symptom between the two groups. Analysis of twice daily data on the severity of cold symptoms compared to baseline values found that improvements in sneezing, cough and the composite cold score were significantly greater at both the first and second assessments among those receiving the cold syrup compared to placebo recipients.

The authors concluded that the homeopathic syrup appeared to be effective in reducing the severity of cold symptoms in the first day after beginning treatment.

Where to start? There are so many problems with this study that I find it difficult to chose the most crucial ones:

  • The study had a clearly defined primary endpoint; it was not affected by the homeopathic treatment which doubtlessly makes the study a negative trial. The only correct conclusion therefore is that THE HOMEOPATHIC SYRUP FAILED TO AFFECT THE PRIMARY OUTCOME MEASURE OF THIS STUDY. THEREFORE THE TRIAL DID NOT PRODUCE ANY EVIDENCE TO ASSUME THAT THE EXPERIMENTAL TREATMENT WAS EFFICACIOUS.
  • I don’t think that many of the primary or secondary outcome measures are validated or reliable.
  • All the positive results reported in the abstract and the article relate to secondary endpoints which are purely explanatory by nature. They should, in my view, not be mentioned in the conclusions at all.
  • The fact that some results turned out to be positive can be explained by the fact that the investigators ran dozens of tests for statistical significance which means that, by simple chance, some will turn out to produce a positive result.
  • A further explanation for the seemingly positive results might be the fact disclosed in the text of the article that the children in the homeopathy group received more conventional drugs than those in the placebo group.
  • Whatever the reason for these positive results, they certainly had nothing to do with the homeopathic syrup.
  • The study was funded by the company producing the syrup and for which one of the authors was employed as a consultant. This might be an explanation for the abominably poor science. In other words, this paper is not an exercise in testing a hypothesis but one in marketing.

While I might forgive the company for trying to maximise their sales figures, I do find it harder to forgive the authors, reviewers and editors for publishing such overtly false conclusions. In my view, they are all guilty of scientific misconduct.

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