panacea
The defence of anthroposophical medicine – or of any other unproven modality – as articulated, for example, by figures like Weleda CEO Tina Müller, presents a vision of patient-centred care and economic pragmatism. However, when held against the light of current clinical standards and the principles of evidence-based medicine (EBM), it reveals significant cracks.
The most profound problem lies in the definition of scientific evidence. Proponents often point to decades of “positive experience” and high patient satisfaction as proof of effectiveness. Yet, in the hierarchy of science, anecdotal success sits at the very bottom. Anthroposophical treatments lack biological plausibility. Their perceived benefits are largely indistinguishable from context effects (such as placebo). Anthroposophical medicine might provide more time, empathy, and personal attention – factors that undoubtedly improve a patient’s well-being but do not validate the effectiveness of the specific remedies used. When independent bodies subject these treatments to rigorous, high-quality trials, the purported effects usually vanishe.
Anthroposophical medicine represents merely a tiny percentage of our healthcare expenditures. Therefore, proponents argue, little money would be saved by getting rid of it. This argument is a calculated distraction from the ethical core of the issue. While the fiscal burden may be marginal, the scientific cost is immense. A statutory health insurance system is built on a social contract of solidarity; it functions under the premise that public funds are reserved for treatments of proven value and effectiveness. To fund therapies that lack plausibility as well as reproducible results is to erode the credibility of medicine and rational thought. It is not a question of the amount of money, but the principle of integrity: every Euro, £ and $ spent on unproven treatments is a euro, £, and $ diverted from underfunded and often life-saving healthcare.
The regularly made appeal to the Swiss Model as a beacon of success also requires a more critical reading. The integration of so-called alternative medicine (SCAM) in Switzerland was, at its heart, a result of direct democracy rather than evidence. While the Swiss public voted for inclusion, the majority of the medical community remains deeply sceptical. To cite Switzerland as “proof” that anthroposophical medicine has fulfilled the criteria of EBM is to conflate political popularity with scientific validation. Democracy can decide how a nation spends its money, but it cannot vote a reliable evidence-base into existence.
Finally, we must consider the human risk of legitimizing non-evidenced-based practices. When a state-sanctioned insurance system places such therapies on the same pedestal as EBM, it risks misleading vulnerable individuals. For patients facing chronic or life-threatening illnesses, the “integrative” path can lead to a dangerous delay in seeking conventional, life-saving interventions. By treating subjective belief and peer-reviewed science as equal peers, we risk entering a “post-truth” medical era where the desire for a “natural” or “holistic” experience outweighs the necessity for proof.
In conclusion, while the call for a more “human” and “holistic” medical system might be noble, it must not come at the expense of scientific rigor. It is deeply misleading to imply that this is an ‘either or’; good medicine will always be based on both. A healthcare system that prioritizes popularity over proof risks becoming a system of expensive comfort rather than one of effective healing. True patient appreciation lies not in offering unproven choices, but in ensuring that every treatment covered by the public purse is supported by sound evidence. Not following this strategy is a disservice to patients and to progress.
So, the next time you hear people defending anthroposophical medicine or any other unproven modality, please look behind the smoke screen and find out why they do it. More often than not, you will then identify a massive conflict of interest. My advice is to listen to independent experts and to dismiss the people with an axe to grind.
The Spanish Agency for Medicines and Medical Products (AEMPS) has just published a comprehensive technical report entitled “Homeopathy and Homeopathic Products: Evaluation of Evidence on Their Efficacy and Safety”, which categorically concludes that there is no scientific evidence supporting the efficacy of homeopathy as a therapeutic tool. After a systematic review of scientific literature and evaluations by state agencies internationally, the report states that the observed effects are comparable to placebo.
The report, which analyzed 64 systematic reviews published since 2009, highlights that most studies suggesting benefits from homeopathy have low methodological quality, often invalidated by small samples, short follow-up periods, or biases in randomization. Furthermore, it notes that as the quality and rigor of clinical trials increase, the supposed effect of homeopathy diminishes until it disappears entirely.
From a scientific standpoint, the principles of homeopathy clash with the laws of physics and current pharmacology. In typical dilutions like 12 CH—where one part of the original substance is mixed with 100 parts of solvent twelve times consecutively—it is mathematically impossible for a single molecule of the original ingredient to remain in the preparation, breaking any cause-and-effect relationship between the product and the therapeutic effect.
To illustrate this disproportion, the report points out that a dilution of just 6 CH (far less extreme than 12 CH) equates to dissolving a packet of sugar in the entire Mediterranean Sea. For this reason, the AEMPS classifies theories like “water memory”—the belief that the liquid retains the properties of a substance even without its molecules—as empirically baseless postulates that challenge scientific and rational thinking.
In compliance with European and national regulations, the AEMPS has completed a regularization process that has resulted in the market withdrawal of numerous products. As of the report’s publication date, no homeopathic product with authorized therapeutic indications exists in Spain. The 976 that remain registered did so via a simplified procedure, based on extreme dilutions ensuring the preparation’s innocuousness, which does not require proof of therapeutic effect and legally prohibits any therapeutic claims on labeling.
Spain aligns with a global trend of health institutions adopting critical stances:
- United Kingdom: The Science and Technology Committee recommended halting public funding and requiring labeling warnings about lack of efficacy.
- Australia: The National Health and Medical Research Council concluded that homeopathy should not be used for chronic or serious diseases.
- France: The Haute Autorité de Santé eliminated public reimbursement for these products in 2021 due to lack of demonstrated efficacy.
- Germany: Approval is expected in 2026 for the definitive removal of homeopathy coverage from statutory health insurance.
- United States: The Food and Drug Administration (FDA) considers these products “unapproved new drugs,” and the Federal Trade Commission requires warnings that there is no scientific evidence of their functioning.
Although there is a popular belief that these preparations are innocuous because they are “natural,” serious adverse reactions have been reported, including poisonings from poor dosing and infant deaths linked to teething products in other countries.
However, the AEMPS warns that the main associated risk is the abandonment or delay of proven effective medical treatments. Citizens opting for homeopathy to treat serious or chronic conditions may endanger their health by replacing evidence-based therapies with products lacking such evidence.
The AEMPS report reaffirms the Ministry’s commitment to public health protection and evidence-based medicine. In line with other international agencies, it emphasizes the need for transparent information so citizens can make safe health decisions. The conclusion of the report is firm:
Given the lack of evidence of efficacy, homeopathy cannot be considered a valid therapeutic alternative, and its use must not lead to delaying or abandoning treatments proven to be effective.
Pediatric vertebral artery dissection (VAD) following chiropractic cervical manipulation (CCM) is a rare phenomenon. As chiropractic care of pediatric populations increases internationally, it is imperative to increase awareness of this cause of VAD.
This case-report describes a patient encountered in the Department of Neurological Surgery, Indiana University School of Medicine, USA. He was a 20-month-old male who presented nonspecifically with acute onset of
- lethargy,
- vomiting,
- cyanosis,
- respiratory distress.
Cerebrovascular imaging revealed a luminal irregularity in the V4 segment of the right vertebral artery, consistent with dissection. The patient’s guardian later provided history of taking the child for cervical chiropractic corrections immediately prior to the patient’s presentation to the emergency department.
The patient was managed non-operatively. Intubation was performed due to respiratory distress and managed with fluids, vasopressors, antimicrobials, and high-flow oxygen. The patient was extubated four days after presentation, and pressors were discontinued upon achievement of hemodynamic stability. A few days after extubation, the patient was ambulating and able to interact with objects and caretakers. Aspirin therapy was initiated and continued after discharge. The patient was followed with annual appointments and imaging. At two-year follow-up, CTA demonstrated an asymmetrically small right vertebral artery, accompanied by encephalomalacia of the right posterior occipital lobe. MRA demonstrated diffuse narrowing of the V4 segment of the right vertebral artery, albeit less pronounced than prior MRAs. Aspirin was discontinued by an outside following team due to stability of imaging findings. The parents were advised to avoid contact sports to avoid trauma and recurrent stroke.
The authors found 2 further cases of pediatric VAD in the published literature following CCM. Non-specific presentations were noted in both of them. Appropriate diagnosis of pediatric VAD requires increased surveillance in response to a thorough history and an acknowledgment of the plethora of possible patient presentations and etiologies.
The authors concluded that there is an increasing utilization of chiropractors among the pediatric population. In a pediatric patient with nonspecific symptoms, VAD should be considered as a differential diagnosis when there is a history of CCM.
The authors’ statement that “pediatric vertebral artery dissection (VAD) following chiropractic cervical manipulation (CCM) is a rare phenomenon” should be taken with a pinch of salt. As there is no monitoring, the frequency of adverse effects and complications is essentially unknown. Crucially. the risks of CCM for children is by no means confined to VADs. For a fuller account, I recomment reading my book which has an entire chapter on this very subject.
The key messages about CCM for kids might be summarised in the following simple three facts:
- CCM has no true benefit for children.
- Thus the risk/benefit balance fails to be positive.
- Therefore we should discourage partents from taking their kids to see chiropractors.
We all know, I think, what homeopaths say about homeopathy. We also know what everyone else says about it. And the two set of opinions could not be more different. In this context, it might be interesting to learn what writers have to say about the subject. Here is a list of quotes from the non-medical, non-scientific literature (I am sure there are many more; if you know some, please let me know):
Boyd, W. (Restless, 2006)
“She had a small leather case of homeopathy remedies, Nux Vomica, Pulsatilla, Arnica, that she treated like a traveling reliquary.”
Coetzee, J.M. (Elizabeth Costello, 2003)
“He is a believer in homeopathy, in the healing power of water, in the memory of water. He is a man of the eighteenth century, really.”
Cunningham, M. (The Hours, 1998)
“She has tried everything: homeopathy, psychotherapy, prayer. She is a woman who lives in the hope of a miraculous adjustment.”
Enright, A. (The Gathering, 2007)
“My mother had a great belief in homeopathy, which is just a way of saying she had a great belief in nothing at all, provided it came in a very small bottle.”
Franzen, J. (The Corrections, 2001)
“Enid was deep into a phase of homeopathy, convinced that a decillionth of a gram of honeybee sting would cure her husband’s tremors.”
Márquez G.G. (“Serenade: How My Father Won My Mother”, 2001)
“…devoted his talent as an autodidact to a science on the decline: homeopathy.”
Hustvedt, S. (The Blazing World, 2014)
“He was the kind of man who treated his neuroses with homeopathy and his physical ailments with intense, silent resentment.”
McEwan, I. (Solar, 2010)
“He had no time for homeopathy, which he considered a form of witchcraft for people who were too polite to carry crystal wands.”
O’Farrell, M. (Instructions for a Heatwave, 2013)
“She kept a kit of homeopathy in her bag, tiny glass vials of white pills that looked like the breath of ghosts.”
Self, W. (How the Dead Live, 2000)
“Lily’s faith in homeopathy was such that she believed if she diluted her own death enough, she might eventually become immortal.”
St. Aubyn, E. (At Last, 2011)
“He had reached that stage of desperation where even homeopathy seemed like a robust and evidence-based option.”
H.G. Wells (Tono-Bungay, 1909)
“By the time my uncle had taken to homeopathy, I realized that his faith in science was of a very elastic kind.”
George Bernard Shaw (Preface to The Doctor’s Dilemma, 1906)
“I have a faith in homeopathy that would make a Harley Street physician shudder, though I suspect it rests less on evidence than on temperament.”
Thomas Mann (The Magic Mountain, 1924)
“He spoke of homeopathy with a curious mixture of irony and conviction, as though the less there was of it, the more there must be.”
Aldous Huxley (Eyeless in Gaza, 1936)
“She placed her trust in homeopathy, preferring infinitesimal certainties to the gross invasions of modern medicine.”
Doris Lessing (The Golden Notebook, 1962)
“She was experimenting with diets and homeopathy, as if the body might be coaxed into sanity by gentler means.”
Margaret Atwood (Cat’s Eye, 1988)
“My mother believed in homeopathy, in small doses and invisible forces, which seemed to me another way of saying she believed in hope.”
Zadie Smith (White Teeth, 2000)
“He dabbled in homeopathy, convinced that the less substance there was, the more profound the cure.”
David Lodge (Therapy, 1995)
“I tried homeopathy for a while, but it seemed to require a belief in something so small it might not exist at all.”
Hilary Mantel (Giving Up the Ghost, 2003)
“Homeopathy offered the promise of healing without intrusion, a whisper of cure rather than a command.”
Martin Amis (The Information, 1995)
“He regarded homeopathy as a joke that had somehow outlived the punchline.”
______________________
It seems to me that, when it comes to homeopathy, the writers tend to agree with the scientists.
I recently came across an aricle entitled “Reiki for Stress Relief” which I thought was excptional even for the often surprising literature on Reiki. Here is the abstract:
Reiki is Holistic. It isn’t just about the mental, or just about the physical, but both, and an overall restoration and improvement to you. And as we know, often the mental and physical are linked.
While the scientific understanding of Reiki’s effects on emotional blocks is still evolving, many individuals report subjective benefits, such as emotional release, relaxation, and a greater sense of inner peace, following Reiki sessions.
As the philosophy of Reiki is grounded in holistic medicine and thought, it is imperative to continue that tradition and also integrate other scientific -backed therapies such as the ones your doctor may suggest if you have a serious medical or mental condition. A balanced approach is key, and Reiki is possibly a powerful tool and philosophy that can be the missing key or complement to your current care regimen.
This is impressive! Don’t you just love how it’s ‘grounded in holistic thought’ while the scientific understanding is ‘still evolving’ ? That’s a very elegant way of admitting ‘we’re still waiting for the first piece of evidence’. And we all appreciate the disclaimer to actually see a real doctor as soon as we are truly ill.
The Canadian comedian Mayce Galoni had perhaps the best measure of Reiki when he did his stand-up bit about his nephew “becoming a Reiki master” at the age of 21: “My 21-year-old nephew is now a Reiki master. I didn’t even know you could be a master of anything at 21… Reiki is the only career where you can get paid for doing exactly what I do when I can’t find the TV remote.”
Sufficient evidence concerning the impact of traditional Chinese medicine (TCM) on clinical outcomes for breast cancer patients in Taiwan is not available. This study sought to examine the association between TCM integration and post-operative outcomes among women undergoing mastectomies.
Utilizing a large insurance database, the Taiwanese researchers identified a cohort of adult women who underwent breast cancer surgery during the 2010–2019 period. They compared sociodemographic profiles and comorbidities between TCM users and non-users. Multiple logistic regression models were employed to estimate adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for both mortality and postoperative complications.
Among 91,298 eligible patients, the one-year pre-operative prevalence of TCM utilization was 40%. Compared to the control group, TCM users demonstrated:
- a significantly lower likelihood of postoperative stroke (OR 0.76, 95% CI 0.62–0.93),
- and a reduced requirement for intensive care (OR 0.74, 95% CI 0.59–0.91).
Moreover, the cumulative exposure of more than 4 TCM consultations within the year preceding surgery was linked to a decreased risk of stroke (OR 0.76, 95% CI 0.61–0.95).
The authors concluded that “our findings indicate that integrating TCM during the year preceding breast cancer surgery is correlated with lower risks of postoperative stroke and a reduced requirement for intensive care. Nevertheless, these observed benefits warrant further verification through prospective and large-scale clinical investigations. Based on these results, we suggest that both Western medical practitioners and public health administrators should be mindful of TCM’s role in the comprehensive care of patients with breast cancer.”
In the paper itelf, the authors “hypothesize that pre-operative TCM integration contributes to the observed reduction in stroke risk and intensive care requirements following mastectomy. These prior insights provide a plausible biological foundation for the favorable outcomes observed in our study”. In other words, they believe that the associations is causal.
I beg to differ!
Much research has demonstrated that people who use so-called alternative medicine (SCAM) in addition to conventional therapies differ from those who don’t. In general, they tend to be more health concious – if not, they would not go to the trouble of using and paying for SCAM. This difference alone suffices to bring about the observed outcomes – even if TCM has no or perhaps a slightly negative overall health effect.
But let’s be generous!
Let’s assume the authors are correct in assuming that the association is causal and that TCM brought about the observed outcomes.
What does that actually mean?
TCM consists of many different modalities. If we just focus on oral medications and assume that there are 1000 different ones [in fact, the number is about 6 times higher], which one do we take to experience the observed outcome? Perhaps all of them?
What I am trying to point out that such research is meaningless; it has zero practical consequences, even if its results were real – which they probably are not.
In the end, it boils down to one main thing: the promotion of unproven (and occasionally dangerous) TCM.
Although currently the COVID-19 pandemic is no longer a public health challenge, the unprecedented utilization and integration of Ayush therapeutics and principles for the COVID-19 response in India represent a critical health systems and policy experiment which needs a systematic evaluation.
A systematic review and meta-analysis was conducted, and the data were extracted till 9th July 2024 using three databases: Scopus, PubMed and DOAJ. A total of seven articles were included for the review, following the PICOS criteria of inclusion and exclusion. Of the 667 articles, seven articles were finally selected, and these articles underwent quality assessment using the AXIS assessment tool. The pooled proportion of the Indian population that utilized the Ayush systems was estimated at a 95% confidence interval, using a random effects model assuming potential heterogeneity. The pooled estimate, publication bias, heterogeneity and sensitivity analysis were graphically represented using a forest, funnel, Galbraith plots and leave-one-out meta-analysis. Additionally, the effects of the small studies were assessed using Egger’s and Begg’s tests. The total sample across the included studies was 789,735. Of the seven articles, six focused on the general population, and five focused on the utilization of the Ayurveda system of medicine. The pooled proportion of the Indian population that utilized the Ayush systems for COVID-19 was 40% (95% CI: 25% − 57%). Based on the policy relevance, risk of exposure, access to guidelines and pattern of utilization two subgroup analyses were carried out. Utilization of multiple systems of Ayush (48%) and utilization among the general population (46%) showed the highest proportion compared to Ayurveda and healthcare workers, respectively. The high heterogeneity (I2 = 99.98%) suggests that the pooled estimate should be interpreted with caution, and the sensitivity analysis found one study had a modest upward influence on the overall estimate.
The authors concluded that this systematic review found a 40% pooled estimate of utilization of Ayush systems from the included studies, suggesting the utilization of these systems to manage mild and asymptomatic conditions and for preventive purposes.
This review reports a 40% pooled utilization rate of Ayush systems for COVID-19 in India, based on just seven studies with a massive sample but extreme heterogeneity (I²=99.98%). Such high heterogeneity undermines the reliability of the pooled estimate, as noted in the study’s own caution and sensitivity analysis showing one study’s outsized influence.
Only seven articles met PICOS criteria from 667 screened, mostly surveys on self-reported use among general populations, without assessing clinical efficacy or outcomes. Quality via AXIS tool is mentioned, but broader Ayush COVID evidence reveals high risk of bias in many trials due to poor randomization, blinding, and variability in interventions. No causal link is drawn between Ayush use and health impacts; the paper merely quantifies popularity amid government promotion.
India faced ~2.4-4.7 million excess deaths in 2020-2021, 7-10x official COVID figures, driven by Delta wave surges, oxygen shortages, and healthcare collapse. Widespread Ayush integration for prevention and mild cases – endorsed by Ministry of Ayush! – did not correlate with better results; high utilization (40-48% in subgroups) coincided with catastrophic mortality levels. Sound evidence for Ayush benefits does not exist. One might therefore speculate that the promotion of Ayush may have diverted resources from proven measures like vaccination and antivirals. In other words, it seems likely that it cost many lives.
Today, there is a strong scientific and medical consensus that homeopathy lacks reliable evidence of efficacy. Many of the strongest rejections come, after independent evaluations of the evidence, from national and international scientific bodies of undoubted repute. Here is my list:
- Advertising Standards Authority (UK) The ASA requires that efficacy claims for homeopathic products be supported by robust clinical evidence and has ruled that unsupported claims are misleading.
- American Academy of Pediatrics (USA) Warns that unproven alternative treatments, including homeopathy, should not delay or replace effective medical care, particularly in children.
- American College of Medical Toxicology & American Academy of Clinical Toxicology (USA) Jointly stated “no evidence exists” homeopathy is effective, noting it can be harmful by delaying evidence-based care; they recommended “against using homeopathic treatment for disease or prevention.”
- American Medical Association (USA) Issed statements that there is “no good-quality evidence” homeopathy is effective for any condition and opposed its integration into mainstream practice.
- Argentine Medical Association (AMA, Argentina) The AMA has criticized homeopathy’s inclusion in medical practice, stating it lacks scientific evidence and warning against its promotion as a valid treatment.
- Belgian Health Authority The Belgian Federal Public Service Health halted reimbursement for homeopathy in 2020, following advice from the College of Physicians that it lacks scientific evidence.
- Canadian Health Authorities Health Canada mandates warning labels on unlicensed claims: “This product is neither approved nor authorized for any indication,” aligning with evidence that homeopathy lacks reliable clinical support.
- Canadian Medical Association (CMA) Via editorials in its journal (CMAJ), the CMA has condemned the licensing of homeopathy as a “loophole” that implies efficacy without scientific proof, stating it “makes a joke of the regulatory process.”
- Chief Medical Officer for England (Dame Sally Davies) Publicly called homeopathic preparations “rubbish” that function only as placebos with no therapeutic benefit beyond psychological effects.
- European Academies’ Science Advisory Council (EASAC) Issued a 2017 statement finding “no evidence that homeopathic products are effective” and reiterated that explanations for homeopathy’s efficacy are “scientifically implausible.”
- Federal Trade Commission (USA) Requires that homeopathic products must not claim effectiveness without evidence; otherwise, they must clearly state a lack of scientific support.
- Federation of American Societies for Experimental Biology (FASEB) Asserted “no convincing evidence” for homeopathy’s clinical efficacy, as its mechanisms contradict established chemistry and physics.
- Food and Drug Administration (USA) States “No homeopathic product is FDA-approved”; products are not reviewed for safety or effectiveness. The FDA also warns they may pose risks.
- French Academy of Medicine Rejected homeopathy as scientifically invalid, stating its theoretical basis and clinical evidence are inadequate or absent.
- German Medical Association (Germany) In 2020, removed homeopathy from the model further education curriculum for doctors, declaring it “is not a medical procedure based on scientific findings.”
- House of Commons Science and Technology Committee (UK) In its 2010 report, concluded “the systematic reviews and meta-analyses conclusively demonstrate that homeopathic products perform no better than placebos.”
- Medicines and Healthcare products Regulatory Agency (UK) Followed committee advice by restricting licensing; homeopathic products should not make medical claims without evidence and are no longer endorsed as medicines.
- National Cancer Institute (USA) States homeopathy has “not been shown to be effective” for cancer treatment or symptom relief, with no rigorous studies supporting benefit beyond placebo.
- National Health and Medical Research Council (NHMRC, Australia) After reviewing over 1,800 studies, it concluded “there are no health conditions for which there is reliable evidence that homeopathy is effective.”
- National Health Service (NHS, England) Formally stated “no NHS funding will be spent on homeopathic medicines,” with guidance that homeopathy performs “no better than placebos.”
- National Institute for Health and Care Excellence (UK) NICE does not recommend homeopathy in any clinical guideline and bases its recommendations on the best available evidence.
- Royal Society (UK) Numerous Fellows have publicly criticized homeopathy, and the Society has supported evidence-based medicine principles incompatible with homeopathy’s claims.
- Russian Academy of Sciences Described homeopathy as “pseudoscience” with principles that “contradict known laws of chemistry, physics, and biology.”
- Spanish Medical Associations (Collegiate Medical Organization of Spain) In 2018, rescinded recognition of homeopathy as a “medical procedure,” declaring it “not scientifically sound.”
- Swedish Medical Association The Swedish Medical Association and National Board of Health declared homeopathy scientifically unfounded in 2010, advising against its use in healthcare.
- Swiss Academy of Medical Sciences Concluded homeopathy lacks scientific evidence and should not be reimbursed by health insurance.
- Swiss Federal Office of Public Health After a 2005-2011 review, it rejected renewed inclusion in basic health insurance (though it was later reintroduced in 2017 under specific political conditions).
- World Health Organization (WHO) Explicitly stated homeopathy “should not be used” for serious diseases like HIV, tuberculosis, or malaria, warning reliance “can be dangerous.”
___________________
And what about institutions supporting homeopathy? I am aware of just one:
- Ministry of AYUSH (India) “Homoeopathy is a cost-effective system of medicine and is widely practiced for both acute and chronic conditions.”
_______________________
Across decades of systematic reviews and independent evaluations by scientific and medical authorities worldwide, no credible evidence has emerged to support the efficacy of homeopathy. Its principles conflict with well-established scientific laws, and its effects are indistinguishable from those of placebo in rigorous studies. The broad convergence of expert opinion is therefore this: homeopathy has no effects beyond placebo. Its continued use represents a divergence from evidence-based medicine, and reliance on it, particularly as an alternative to effective care, poses a clear risk to public health.
In recent decades, acupuncture has attracted extensive research spanning an astonishingly wide array of medical conditions, from chronic pain and neurological disorders to infectious diseases and psychiatric ailments. However, the proposed mechanisms of action—ranging from peripheral sensory stimulation to central nervous system modulation—fail to provide a coherent, biologically plausible explanation for efficacy across this disparate spectrum (Zhao et al., 2022; WHO, 2003).
The aim of this post is to examine the breadth of published acupuncture trials, delineate the leading scientific hypotheses for its mode of action, and outline the profound implausibility of these mechanisms universally applying to such varied pathologies, ultimately framing acupuncture as non-specific rather than a specific therapeutic modality (Meissner et al., 2019; Ernst, 2018).
Acupuncture has been subjected to thousands of randomized clinical trials (RCTs) and systematic reviews across virtually every medical specialty. A comprehensive 2022 evidence map published in BMJ Open synthesized 120 systematic reviews, encompassing 1,402 individual RCTs and addressing 77 distinct conditions within 12 broad therapeutic categories (Zhao et al., 2022). These categories include neurological disorders, musculoskeletal conditions, cardiovascular diseases, and beyond, reflecting a research enthusiasm that transcends conventional biomedical boundaries.
Neurological applications dominate, with trials targeting stroke sequelae such as hemiplegia and aphasia, vascular dementia symptoms, migraines, tension headaches, and facial nerve palsies like Bell’s palsy (Li et al., 2022; Zhao et al., 2022; WHO, 2003). Musculoskeletal trials are equally prolific, examining low back pain, knee osteoarthritis, fibromyalgia, tennis elbow (lateral epicondylitis), sciatica, shoulder periarthritis, rheumatoid arthritis, and even gouty arthritis (Li et al., 2022; Zhao et al., 2022; Choi et al., 2019; Lam et al., 2020; WHO, 2003). Cardiovascular research has probed essential hypertension, primary hypotension, and pain from thromboangiitis obliterans (Shanghai Medical Clinic, 2025; WHO, 2003). Gynecological and obstetric domains feature prominently, including dysmenorrhea, labor induction, breech presentation correction, pregnancy-related nausea and vomiting, and fertility enhancement (e.g., improved clinical pregnancy rates in IVF protocols) (Zhao et al., 2022; Shanghai Medical Clinic, 2025; Smith et al., 2021; Carr, 2022; WHO, 2003).
Acupuncture trials also extend to psychiatric conditions like generalized anxiety disorder (especially in perimenopause), depression, and other mental disturbances (Zhao et al., 2022; Zhang et al., 2025; WHO, 2003); respiratory issues such as allergic rhinitis and hay fever (Li et al., 2022; Shanghai Medical Clinic, 2025; WHO, 2003); gastrointestinal disorders including acute and chronic gastritis, biliary colic, and postoperative nausea/vomiting (Zhao et al., 2022; Shanghai Medical Clinic, 2025; WHO, 2003); urogenital and nephrological problems like renal colic and radiation-induced leucopenia (often in renal contexts) (Shanghai Medical Clinic, 2025; WHO, 2003); infectious diseases such as acute bacillary dysentery, pertussis (whooping cough), and epidemic hemorrhagic fever (WHO, 2003); pediatric applications, albeit more limited, for post-extubation pain relief and whooping cough (ClinicalTrials.gov, 2013; WHO, 2003); and oncology support for cancer-related fatigue and chemotherapy/radiation side effects (Zhao et al., 2022; Shanghai Medical Clinic, 2025). Additional niches include ear-nose-throat conditions (e.g., rhinitis), eye disorders, connective tissue diseases, metabolic/nutritional imbalances, and skin pathologies (Zhao et al., 2022; WHO, 2003).
This extraordinarily wide spectrum, drawn from seminal analyses like the World Health Organization’s (WHO) 2003 review of controlled clinical trials (WHO, 2003) and Cochrane overviews on pain (Choi et al., 2019; Lee et al., 2011), clearly demonstrates that acupuncture is considered by its proponents to be a ‘cure all’. This begs the question whether such an assumption can be reasonable. The effect sizes are typically modest, and true acupuncture is often no different from sham interventions (e.g., superficial needling at non-acupoints), suggesting limited specific efficacy (Lee et al., 2011).
The scientific literature proposes a constellation of mechanisms to explain how acupuncture might work, integrating peripheral, spinal, supraspinal, and systemic processes. These are often conceptualized through the “Neural Acupuncture Unit” (NAU) model, which posits low-threshold mechanosensitive afferents (Aδ and C fibers) at acupoints converging with brain networks to elicit bidirectional signaling (Zhang et al., 2012).
- Peripheral and Local Mechanisms. Needle manipulation is claimed to induce immediate tissue responses: adenosine triphosphate (ATP) breakdown to adenosine activates A1 receptors, dampening nociceptor firing (Kelly & Suckley, 2016); axonal reflexes release neuropeptides like substance P and calcitonin gene-related peptide (CGRP), modulating local inflammation; and stromal cells exhibit cytoskeleton remodeling, with collagen fibers “wrapping” around needles to propagate mechanical signals (Kelly & Suckley, 2016; Zhang et al., 2012; Li et al., 2025). The characteristic deqi sensation (aching, soreness) correlates with these events, potentially amplifying sensory input (Staud & Price, 2014).
- Spinal Cord Level. Ascending afferents are said to activate the gate control system, presynaptic inhibition, and diffuse noxious inhibitory controls (DNIC), releasing endogenous opioids (β-endorphin, enkephalins, dynorphins), serotonin, norepinephrine, and acetylcholine to suppress nociceptive transmission in the dorsal horn (Kelly & Suckley, 2016; Zhang et al., 2012; Staud & Price, 2014). This underpins analgesia and autonomic regulation, such as reduced sympathetic outflow (Kelly & Suckley, 2016).
- Central Nervous System Modulation. Functional neuroimaging (fMRI, PET) reveals deactivated limbic hyperactivity (amygdala, anterior cingulate), normalized hypothalamic-pituitary-adrenal (HPA) axis activity, and enhanced prefrontal connectivity, particularly in pain, stress, and mood disorders (Kelly & Suckley, 2016; Zhang et al., 2012; Wang et al., 2025). Top-down expectancy modulates descending inhibitory pathways, integrating with reward and mirror neuron systems (Zhang et al., 2012).
- Systemic and Humoral Effects. Acupuncture is also thought to influence immune homeostasis by shifting cytokine profiles (e.g., ↑IL-10, ↓TNF-α, ↓IL-6), autonomic balance (vagal enhancement), and endocrine axes, providing a basis for visceral, metabolic, and inflammatory conditions (Kelly & Suckley, 2016; Li et al., 2025). Recent integrative studies emphasize network pharmacology, where multi-point stimulation perturbs interconnected pathways (Li et al., 2025).
These potential mechanisms have been empirically observed in animal models and/or human imaging studies. They might offer a partial rationale, primarily for analgesia and stress-related syndromes (Kelly & Suckley, 2016; Zhang et al., 2012). The question, however, is whethr they can provide a full explanation for acupuncture’s efficacy in all the above-named conditions.
No synthesis of these mechanisms plausibly accounts for acupuncture’s claimed benefits across unrelated conditions, exposing a core scientific paradox. Musculoskeletal pain might align with local adenosine/opioid effects and spinal gating (Kelly & Suckley, 2016), but how do these explain microbial clearance in bacillary dysentery, hypertensive vascular remodeling, or synaptic imbalances in major depression? (Meissner et al., 2019; Ernst, 2018). Gynecological infertility involves ovarian endocrinology, distant from needle-evoked sensory cues; infectious pertussis implicates Bordetella immunity, not HPA modulation (WHO, 2003; Meissner et al., 2019). This biological implausibility echoes homeopathy critiques: a single intervention cannot verifiably target such heterogeneous pathophysiologies without invoking non-specific forces (Fabrizio et al., 2010).
Trial data reinforce these doubts: meta-analyses consistently show that verum acupuncture is hardly different from sham acupuncture, and sham elicit up to 80% of verum’s effects (Kelly & Suckley, 2016; Meissner et al., 2019; Fabrizio et al., 2010; Kaptchuk et al., 2013). Such considerations implicate patient and therapist expectations, therapeutic ritual, and patient-practitioner alliance as the true mechanism behing the observed outcomes (Meissner et al., 2019; Kaptchuk et al., 2013). Neuroimaging effects often mirror expectancy manipulations in non-needling studies, suggesting top-down confounds (Fabrizio et al., 2010). Lab phenomena (e.g., adenosine release) occur but yield trivial clinical effects, dwarfed by psychosocial amplification (Fabrizio et al., 2010).
Acupuncture’s elaborate ritual maximizes contextual healing, outperforming inert pills but lacking disease-modifying specificity (Meissner et al., 2019; Ernst, 2018). Paradoxes abound—positive preclinical signals evaporate in blinded RCTs; cultural bias inflates Asian trial positives; poor sham penetration and blinding failures perpetuate illusions (Fabrizio et al., 2010; Ernst, 2018). For non-pain conditions, evidence thins further, with publication bias and flexible outcome reporting inflating apparent successes (Fabrizio et al., 2010).
Acupuncture carries risks including minor issues like bleeding, needle site pain, vegetative reactions (e.g., dizziness or nausea), and symptom aggravation, alongside rarer serious events such as pneumothorax, infections, or organ injury. Overall, at least one adverse event in 9.31% of patients undergoing a treatment series or 7.57% of treatments, with half of these being mild local reactions. Serious adverse events seem to be uncommon. Reliable prevalence figures do not exist because there is no adequate surveillance system in place (Ernst 2006).
Acupuncture’s trial proliferation signals cultural and patient-driven demand rather than mechanistic or evidential triumph. Its broad therapeutic claims by far overreach evidence (Staud & Price, 2014). Rigorous advancement would require objective biomarkers (e.g., cytokine assays, EEG), dose-response optimization, adaptive sham designs, and large pragmatic trials stratifying contextual from specific effects (Zhang et al., 2012; Fabrizio et al., 2010). Until compelling evidence exists, acupuncture remains a testament to human suggestibility’s power, but not a biomedical panacea.
References
- Carr, D. (2022). Acupuncture as Treatment for Female Infertility. Medical Acupuncture, 34(1), 12-21.
- Choi, D., et al. (2019). Cochrane reviews on acupuncture therapy for pain: a snapshot of the current evidence. Systematic Reviews, 8, 231.
- ClinicalTrials.gov. (2013). Pediatric Laser Acupuncture and Renal Biopsy (NCT01879826).
- Ernst, E. (2006). Acupuncture–a critical analysis. J Intern Med, 259(2):125-37.
- Ernst, E. (2018). Acupuncture Research: The Problem. Pain Medicine, 19(6), 1287-1288.
- Fabrizio, P., et al. (2010). Paradoxes in Acupuncture Research: Strategies for Moving Forward. Explore (NY), 6(4), 231-239.
- Kaptchuk, T. J., et al. (2013). Are All Placebo Effects Equal? Placebo Pills, Sham Acupuncture, or Placebo Needle in Irritable Bowel Syndrome. PLoS ONE, 8(7), e67485.
- Kelly, R., & Suckley, S. (2016). Mechanisms of acupuncture. European Journal of Integrative Medicine, 20, 1-11.
- Lam, M., et al. (2020). Acupuncture and Chronic Musculoskeletal Pain. Medical Acupuncture, 32(6), 357-366.
- Lee, M. S., et al. (2011). Acupuncture for pain: an overview of Cochrane reviews. Chinese Journal of Integrative Medicine, 17(3), 187-189.
- Li, T., et al. (2022). Evidence on acupuncture therapies is underused in clinical practice. Frontiers in Medicine.
- Li, Y., et al. (2025). Integrative research on the mechanisms of acupuncture. Neural Regeneration Research.
- Meissner, K., et al. (2019). Acupuncture for the Treatment of Pain – A Mega-Placebo? Frontiers in Neuroscience, 13, 1119.
- Shanghai Medical Clinic. (2025). WHO Approved Acupuncture List of Conditions.
- Smith, C. A., et al. (2021). An Overview of Systematic Reviews of Acupuncture for Respiratory Diseases. Frontiers in Public Health.
- Staud, R., & Price, D. D. (2014). Acupuncture therapy: mechanism of action, efficacy, and safety. International Review of Neurobiology, 111, 171-189.
- Wang, L., et al. (2025). Possible antidepressant mechanism of acupuncture. Frontiers in Neuroscience, 19, 1512073.
- WHO. (2003). Acupuncture: Review and Analysis of Reports on Controlled Clinical Trials.
- Zhang, R., et al. (2012). Neural Acupuncture Unit: A New Concept for Interpreting Effects and Mechanisms of Acupuncture. Evidence-Based Complementary and Alternative Medicine, 2012, 429412.
- Zhang, Y., et al. (2025). Patient-reported outcome tools of acupuncture clinical trials. Journal of Pain Research.
- Zhao, C., et al. (2022). Evidence mapping and overview of systematic reviews of the effects of acupuncture therapies. BMJ Open, 12(6), e056803.
Ita Wegman (22 February 1876 – 4 March 1943) was born 150 years ago today. Together with Rudolf Steiner, she was a central figure in the development of anthroposophic medicine, an approach that interprets illness through spiritual–cosmological concepts. In 1921, Wegman founded the Klinisch-Therapeutisches Institut in Arlesheim, Switzerland—today the Ita Wegman Clinic—the first hospital dedicated to anthroposophic medicine. Practices developed there included rhythmical massage, a gentle bodywork technique intended to “harmonize” physiological rhythms, and mistletoe-based cancer therapy derived from Viscum album, later marketed as Iscador, as well as many other remedies influences by homeopathy. Wegman also co-founded Weleda, which remains a major producer of anthroposophic remedies and cosmetics.
Despite its continued use in parts of Europe, mistletoe therapy (including Iscador) has not demonstrated reliable clinical efficacy in improving cancer survival or tumor outcomes in well-controlled trials. Major systematic reviews conclude that evidence for benefit is inconsistent, methodologically weak, and often biased, with any reported improvements largely limited to subjective quality-of-life measures. It is therefore regarded by mainstream oncology as an unproven therapy rather than an evidence-based treatment. For Wegman’s other therapeutic innovations the evidence is even less convincing.
Her collaboration with Steiner was both professionally formative and personally intense. They met in the early 1900s, and Wegman later credited Steiner with inspiring her decision to pursue medicine relatively late, enrolling at the University of Zurich. From 1919 onward, their cooperation deepened: Steiner supplied esoteric frameworks derived from anthroposophy, while Wegman sought to translate these ideas into clinical practice. Their collaboration culminated in the book “Fundamentals of Therapy” (1925), published shortly after Steiner’s death.
Speculation about a romantic relationship between Wegman and Steiner has persisted for decades. Purported “love letters” dated to 1924 describe expressions of affection, but most scholars regard them as forgeries, citing factual errors, the absence of originals from Steiner archives, and stylistic inconsistencies with Steiner’s documented correspondence. Steiner himself described their bond in karmic terms, claiming a debt from a past incarnation that explained their closeness despite his marriage to Marie von Sivers. Historian Peter Selg and others interpret the relationship as an intense spiritual and intellectual partnership rather than a conventional affair, though contemporaries did circulate rumors.
Steiner died on March 30, 1925, after a prolonged illness. The exact cause remains uncertain and not definitively confirmed as stomach cancer. Wegman provided Steiner’s main care from September 1924 until his death, leaving her clinic to nurse him in his studio at the Goetheanum in Dornach, Switzerland. She is said to have employed anthroposophic approaches, but specific treatments remain sparsely documented in available accounts.
Following Steiner’s death, Wegman’s authority within the movement became increasingly contested. In 1935 she was expelled from the Anthroposophical Society amid internal power struggles and accusations of doctrinal deviation; this expulsion was formally reversed in 2018. Wegman’s political stance during the Nazi period remains controversial. While anthroposophy as a movement was partially suppressed in Nazi Germany, several leading anthroposophists – including Wegman – sought accommodation rather than resistance. Wegman expressed hopes in the early 1930s that National Socialism might support a spiritual renewal of society and did not publicly oppose the regime. Although she was not a member of the Nazi Party and later faced restrictions, her posture is best described as opportunistic accommodation and ideological ambiguity.
Wegman’s collaboration with Steiner created the foundations of anthroposophic medicine. It also generated enduring scientific, ethical, and political controversies – particularly regarding the medical validity of its treatments and its leaders’ responses to authoritarian power after Steiner’s death.
