The lucrative lie: SCAM and disease prevention

So-called alternative medicine (SCAM) likes to present itself as a champion of disease prevention. Its advocates routinely claim to promote health before disease develops, to strengthen the body’s defences, and to address root causes rather than symptoms. This rhetoric is highly attractive, because prevention sounds proactive, humane, and economical. Crucially, it is also good for the SCAM practitioner’s bank account. Yet there is a snag: almost none of the preventive claims made for SCAM are supported by reliable evidence, whereas the prevention that works comes overwhelmingly from conventional medicine and science.

To show preventive benefit, an intervention must demonstrably reduce the incidence of symptom, disease, complication, or mortality in properly designed studies. That may require randomised trials, epidemiological studies, large cohorts, reproducible findings, and enough follow-up to show that fewer people actually experienced the given endpoint. Mainstream medicine has repeatedly met this standard. Immunization, blood pressure control, smoking cessation, lipid lowering, cancer screening, and risk-factor modification are all products of biomedical research, not of alternative healing traditions.

SCAM, by contrast, tends to use prevention in a loose, impressionistic, and unfalsifiable way. A practitioner may claim that a treatment “balances energy,” “supports immunity,” or “keeps the body in harmony,” but such phrases do not establish a preventive effect. They are placeholders for evidence, not evidence itself. In practice, the absence of disease after treatment is treated as proof that the treatment worked, even though the same outcome occurs every day without any intervention at all.

Acupuncture is a good example. Its defenders portray it as a preventive system capable of preserving general health or warding off illness, but the evidence base does not support that claim. Some reviews do suggest that acupuncture may help with some pain-related and symptom-focused conditions, yet its preventive value is largely unproven. I am not aware of solid evidence to show that acupuncture prevents anything – but, if I am wrong, please do correct me.

Chiropractic care is even more revealing because preventive claims are often tied to the doctrine of spinal “subluxation” and nervous system dysfunction. Yet the literature on prevention is thin and methodologically weak. I am not aware of solid evidence to show that chiropractic prevents anything – but, if I am wrong, please do correct me.

Herbalism benefits from the romantic appeal of “natural” remedies, but that appeal should not be confused with demonstrated preventive efficacy. Individual plant compounds have certainly inspired real drugs, yet that is a triumph of pharmacology, not of herbalism as a system. When herbal medicines are tested for prevention, results are usually weak, inconsistent, or insufficient to support recommendation. I am not aware of solid evidence to show that herbal medicine prevents anything – but, if I am wrong, please do correct me.

Homeopathy is one of the most extreme cases within SCAM. It is often sold as gentle, individualized, and even preventive, but its basic principles are scientifically implausible, and its clinical evidence is either flawed or negative. Preventive homeopathy, including ideas such as “homeoprophylaxis,” is particularly problematic because it can give people a false sense of security while displacing interventions that genuinely prevent disease, such as vaccination. I am not aware of solid evidence to show that homeopathy prevents anything – but, if I am wrong, please do correct me.

SCAM speaks almost constantly about prevention, but the evidence for actual preventive benefit is close to non-existent. What we know about prevention, what truly reduces disease incidence and improves population health, comes from conventional medicine, epidemiology, public health, and biological science. SCAM will no doubt continue to borrow the language of medicine and prevention, but – as far as I can see – it has failed to supply the proof.