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2 mins read
For decades, the proliferation of alternative therapies aimed at autistic individuals has advanced faster than the evidence supporting them. A new study seeks to bring order to this landscape: after systematically reviewing the available literature, the authors conclude that there is no solid evidence to justify the use of any of these approaches, and that in many cases their safety has not even been adequately evaluated.
The research, carried out by teams from Paris Nanterre University, Paris Cité University, and the University of Southampton, analyzed 248 meta-analyses that integrate data from more than 10,000 individuals. This is what is known as an umbrella review, a design that does not evaluate isolated studies but instead examines the entire set of available systematic reviews to provide a global overview of the state of the evidence.
The focus was placed on 19 types of interventions grouped under the category of complementary, alternative, and integrative medicines. These included everything from dietary supplements, probiotics, and vitamins to animal-assisted therapies, music therapy, acupuncture, and non-invasive brain stimulation techniques. Despite the diversity of approaches and their widespread use, the results were consistent: the reported positive effects are weak, unreliable, or based on studies of low methodological quality.
A particularly concerning aspect is the limited attention given to safety. Fewer than half of the interventions had minimal data on tolerability, acceptability, or possible adverse effects. In practice, this means that many of these therapies are used without a clear basis to assess not only whether they work, but also whether they might cause harm.
The study does not ignore the context in which these practices become appealing. Many autistic individuals —and their families— seek supports that alleviate real difficulties affecting quality of life, such as anxiety, sensory overload, or repetitive behaviors that, in some cases, may lead to self-injury. According to the authors themselves, up to 90% of autistic people have tried at least one such intervention at some point.
At the same time, the research highlights an underlying tension: for broad sectors of the autistic community, the very notion of 'treating' autism is problematic. It is not a disease to be cured, but a neurodiverse condition that requires understanding, appropriate supports, and more accessible environments. From this perspective, an exclusive emphasis on corrective interventions may prove not only ineffective but also ethically questionable.
With the aim of making the available evidence transparent, the researchers also developed an open digital platform where anyone can consult what has been studied about each intervention and with what level of scientific support. The idea is not to prescribe decisions, but to encourage informed choices based on the actual quality of the data rather than unfounded expectations.
Rather than closing the debate, the study introduces a clear criterion: when it comes to interventions aimed at autistic individuals, good intentions or isolated studies are not enough. Assessing the body of evidence, its strength, and its limits is a minimum condition to ensure that interventions are not focused on suppressing behaviors, but on improving quality of life.