Veḷi

Made visible · examined, not sold

Traditional medicine, taken seriously — which means taken critically.

Ayurveda and Siddha are ancient, living systems used by most of India. The wellness industry sells them as gentle, natural, and safe; the colonial and modern-skeptic reflex dismisses them as superstition. Both are wrong, and both fail the people who actually use these medicines. The honest position is harder and more useful: some remedies show real effect, the evidence base is thin, and a documented pattern of heavy-metal poisoning is not always contamination — sometimes the metals are added on purpose. Respect means telling the truth.

The stakes are not academic.

who uses this, and why it matters

Roughly 80% of the Indian population uses herbal-medicine products. These are not fringe practices — they are the primary or complementary healthcare of hundreds of millions, disproportionately the poor and rural for whom conventional medicine is distant or unaffordable. That is exactly why this platform refuses both the glossy and the dismissive versions: the people most exposed to both the benefits and the harms are the ones with the least power to evaluate either. Getting this right is not a debate about heritage. It is a matter of who gets hurt.

Sharma et al. (2016), QJM (Oxford) — ~80% herbal-product use in India; Patwardhan et al. (2005), Evidence-Based Complementary and Alternative Medicine. doi:10.1093/ecam/neh140 verified · scite

What shows real effect.

the case for taking it seriously

Dismissing the whole tradition as superstition is both wrong and disrespectful to a genuine body of knowledge. Ayurvedic preparations have been evaluated in clinical studies with encouraging results for specific conditions — bronchial asthma, rheumatoid arthritis, and ischaemic heart disease among them — and compounds drawn from the tradition have proven out in modern terms: piperine, from pippalī (long pepper), is a validated bioenhancer that increases the absorption of other drugs. The plant knowledge accumulated over two millennia is a real pharmacopoeia, and parts of it repay serious scientific attention.

The honest frame for efficacy

"Some of it works, for some things" is the truthful claim — not "it all works" and not "none of it works." The leading comparative overview is candid that Ayurveda "still needs more extensive scientific research and evidence base," and notes that Chinese traditional medicine has been more systematically validated. The knowledge is real; the evidence is uneven; and a remedy's antiquity is not proof of its efficacy. Old is not the same as true — but old is also not the same as false.

Patwardhan, B., Warude, D., Pushpangadan, P. & Bhatt, N. (2005). "Ayurveda and Traditional Chinese Medicine: A Comparative Overview." Evidence-Based Complementary and Alternative Medicine 2(4): 465–473.

TypeSecondary — comparative review (824+ citing works)
SupportsThat Ayurvedic preparations have been clinically evaluated with encouraging results for bronchial asthma, rheumatoid arthritis and ischaemic heart disease; that piperine is a validated bioenhancer; that heavy-metal contamination and synthetic-drug adulteration are documented problems; and — in the authors' own words — that Ayurveda "still needs more extensive scientific research and evidence base."
Does not supportThat any of these treatments meets the evidentiary standard for clinical recommendation. "Encouraging results" in a 2005 review is not equivalent to established efficacy.
Interest to discloseBhushan Patwardhan is a leading advocate for evidence-based Ayurveda: National Research Professor–AYUSH, adviser to India's Ministry of AYUSH, WHO Traditional Medicine consultant, and founding Editor-in-Chief of Elsevier's Journal of Ayurveda and Integrative Medicine. He is a highly cited biomedical scientist (18,000+ citations) and his methodological candour here is notable — but he writes from within the institutional project of legitimising Ayurveda, and this platform flags that rather than presenting him as a disinterested assessor.
Old is not the same as true. Old is also not the same as false. The tradition's age settles nothing; the evidence does.

The harm is real, and partly by design.

heavy metals · the finding that must not be softened

Here the platform states plainly what the wellness framing hides. A systematic review of two decades of medical case reports found 220 documented cases of heavy-metal poisoning from Ayurveda and Siddha preparations — 156 from lead, 47 from mercury, 11 from arsenic. Of the drug samples tested, 83.7% contained heavy-metal content above permissible limits, and most patients showed elevated metal levels in the body. Documented cases include severe arsenic poisoning — nerve damage, the tell-tale "Mees' lines" on the nails — traced to indigenous medicine.

Sometimes contamination

Poor manufacturing, adulteration, and soil pollution where plants are grown introduce metals accidentally. Some samples have even been found spiked with hidden synthetic drugs (steroids, anti-inflammatories).

Sometimes on purpose

The rasa śāstra / bhasma tradition deliberately includes metals and minerals as active ingredients — cinnabar (mercuric sulfide), lead, arsenic — believing preparation renders them safe or therapeutic. Here the metal is not a defect. It is the recipe.

The distinction that matters

This is the crux, and it is why "just regulate contamination" is not the whole answer. Much heavy-metal exposure is contamination and could be fixed by quality control. But a real strand of the tradition — rasa śāstra — holds that mercury, lead and arsenic, correctly processed, are medicine. Modern toxicology is clear that lead, mercury and arsenic are toxic to the nervous system, kidneys and development, with no established safe therapeutic use in these forms. The platform does not adjudicate every preparation — some researchers argue specific processed forms (e.g. certain mercuric-sulfide compounds) behave differently in the body, and that work is ongoing and contested. But the public-health reality is unambiguous: a documented pattern of poisoning exists, some of it flows from the tradition's own pharmacology, and no one using these medicines should be told they are inherently gentle or safe.

Mukhopadhyay, S., Abraham, S. E., Holla, B., et al. (2021). "Heavy Metals in Indian Traditional Systems of Medicine: A Systematic Scoping Review and Recommendations for Integrative Medicine Practice." The Journal of Alternative and Complementary Medicine 27(11): 915–929.

TypeSecondary — systematic scoping review of case reports/series (MEDLINE, two decades); risk of bias assessed (Murad et al. tool)
Supports220 cases of heavy-metal toxicity attributed to Ayurveda/Siddha preparations (lead 156, mercury 47, arsenic 11, thallium 1, gold 1, combinations 4); 169/220 (76.8%) at low risk of bias; 113 of 135 analysed samples (83.7%) above permissible heavy-metal limits.
Does not supportA population-level incidence or prevalence rate — case reports cannot establish how common poisoning is among all users. Nor does it establish that any particular product or practitioner is unsafe.

Why both the glossy and the dismissive version fail.

the platform's stance

The wellness-industry version — "ancient, natural, holistic, safe" — is a marketing frame that erases the poisoning cases and the thin evidence base, and it profits from the same supernatural-claim-for-payment economy the platform documents on its criminalised-today page. The colonial/dismissive version — "primitive superstition" — erases a genuine two-millennia pharmacopoeia and the real clinical results, and it is the same contempt that dismissed everything indigenous. Both refuse the actual people their due: accurate information about what might help, what won't, and what could hurt them.

What "decolonising medicine" actually requires

It is tempting to think respecting indigenous knowledge means defending it against Western scrutiny. It is the opposite. The colonial move was to not bother testing indigenous medicine seriously — to dismiss it unexamined. The decolonial move is to give it the same rigorous evaluation Western medicine gets: test what works, discard what doesn't, and refuse to let either heritage-pride or heritage-contempt override the evidence. Respect is rigour. The people who use these medicines deserve to know the truth about them — and the truth is mixed, specific, and worth the work of finding out.

The honest limits — and a note on safety.

what this page does and does not do

The ledger.

ClaimStatusSource
~80% of Indians use herbal-medicine productsCitedSharma 2016 (QJM)
Clinical results for asthma/RA/ischaemic heart disease; piperine bioenhancerCitedPatwardhan 2005 (ECAM)
Ayurveda "needs more extensive evidence base"CitedPatwardhan 2005
220 heavy-metal poisoning cases; 83.7% samples over-limitCitedMukhopadhyay 2021 (JACM)
Metals partly deliberate (rasa śāstra / bhasma), partly contaminationCitedSarker 2014; Mukhopadhyay 2021
Specific processed-metal forms safe/effectiveContested/ongoingnot adjudicated
All traditional medicine works / all is dangerousNot claimedboth extremes refused