Recognising controversial and dubious offers

Why this topic matters

In its foreword, the 2021 S3 guideline described that ethically unacceptable measures have been used in the history of care for people with autism, and that this remains relevant, for example in dealing with aggressive behaviour. ^{[1, Foreword]} A separate chapter of the guideline named methods harmful to health and ethically questionable so that they are no longer used. There, methods involving deprivation of liberty that does not serve to avert danger, as well as methods that socially isolate people or carry a high likelihood of manipulation, were regarded as ethically questionable. ^{[1, Ch. C.11]} In a consensus-based recommendation (strong consensus), the guideline stated that, among others, “treatment with chlorine bleach”, “chelation” therapies with chelating agents, holding therapy, “packing” and facilitated communication should never be used in autism. ^{[1, Rec. 121, Ch. C.11]}

Financial consequences come on top. The guideline reported a survey among fathers of children with autism in the USA: some said they had spent very large sums on various therapies that they experienced as ineffective. The study was small and had a selective sample (ten fathers); it is an indication of the financial pressure families can be under. ^{[1, Ch. C.2.2.2]}

Warning signs

The following warning signs are a compilation by the editorial team. Individual points (goals, time limits, assessment, coercion) are based on principles of the 2021 S3 guideline. ^{[1, Foreword, Rec. 1, Ch. C.11]} The other points are indications from the editorial team and are not backed by the guideline. They are indications, not a complete list. Not every feature alone means that an offer is dubious:

• Promises of a cure. The 2021 guideline describes autism as a rule as a chronic condition or disability with a variable course. ^{[1, Rec. 1]} Offers that promise a “cure” or the “disappearance” of autism do not fit this classification.
• No clear, verifiable goals. Good support names concrete goals and sets out how progress is checked.
• No time limit and no review. The 2021 guideline envisaged interventions as time-limited and regularly reviewed. ^{[1, Foreword]}
• No prior assessment before therapy. According to the 2021 guideline, an intervention should only be offered after appropriate assessment. ^{[1, Foreword]} If in doubt, ask an independent advice centre.
• One remedy for everything. One product is supposed to cure autism and many other unrelated conditions at the same time.
• Evidence only as personal testimonies. Instead of studies there are testimonials or references to “suppressed knowledge”.
• Pressure and urgency. For example “only now”, “the earlier, the safer” or disparagement of other help.
• High private costs without transparency about contents and monitoring of success. Reputable services can also be privately paid; transparency is what matters.
• Coercion or pain. Measures that are forced on a child against their will, cause pain or violate dignity. The guideline named methods involving deprivation of liberty that does not serve to avert danger as ethically questionable. ^{[1, Ch. C.11]}

A dangerous example: chlorine dioxide (“MMS”)

Under names such as “MMS” (Miracle Mineral Supplement), CDL or CDS, a solution from which chlorine dioxide forms is advertised. The consumer advice centre (Verbraucherzentrale) warns: taking it poses a considerable health risk. Chlorine dioxide is classified as “very toxic” and “corrosive”, and there is no evidence for the promised healing effects. ^[3] The Verbraucherzentrale page does not mention autism; it reports that poison control centres increasingly reported poisonings by MMS during the coronavirus pandemic, up to life-threatening chemical burns in toddlers. ^[3] The 2021 S3 guideline did not name MMS explicitly, but listed “treatment with chlorine bleach” among the methods that should never be used in autism. ^{[1, Rec. 121, Ch. C.11]}

Questions you can ask

• What concrete goal is to be reached, and how will we know whether it works?
• What studies exist on this approach for this goal? How is it assessed in guidelines? (The 2021 S3 guideline has expired and was only in part the basis of this article.)
• How long does the measure last, and when will it be reviewed?
• What risks and side effects are there?
• What qualifications do the providers have?
• What does it cost, and who bears the costs?
• May my child, or may I, say no, and is that respected?

A reputable service answers these questions openly. The article How good is a study? also offers help with putting things in context.

“Not researched” does not mean “dubious”

The 2021 guideline pointed out: missing evidence does not automatically mean that a method is ineffective. It may also simply not yet have been studied sufficiently. ^{[1, Foreword]} So not every little-researched offer is dubious. What matters is how transparently it handles this uncertainty, whether it has clear goals and whether it harms no one.

Sources and literature

1. DGKJP, DGPPN et al. S3-Leitlinie Autismus-Spektrum-Störungen, Teil 2: Therapie. AWMF 028-047, 2021 (Vorwort; Empf. 1; Kap. C.2.2.2; Kap. C.11 mit Empf. 121). – Guideline (in German); validity expired on 23 March 2026 according to the DGKJP overview ^[2]
2. DGKJP: Aktuelle Leitlinien (Übersicht mit AWMF-Registernummer und Gültigkeitsdatum). https://www.dgkjp.de/wissen/aktuelle-leitlinien/ – Professional society (website in German)
3. Verbraucherzentrale: Miracle Mineral Supplement (MMS): Erhebliche Gesundheitsgefahr. Stand 26.06.2026. https://www.verbraucherzentrale.de/wissen/lebensmittel/nahrungsergaenzungsmittel/miracle-mineral-supplement-mms-erhebliche-gesundheitsgefahr-11044 – Consumer protection (in German)