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Autism has long been linked to gut bacteria. Over the past few years, supplements and special diets that target gut bacteria and claim to reduce autism have entered the market. However, experts have said otherwise. A major scientific review in the journal Neuron examined the theories and found several flaws and contradictions.
According to the researchers, the connection of gut-brain function to autism is reportedly based on three pillars: clinical trials, observational studies, and mouse experiments. However, none of these stand up to scientific scrutiny.
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Autism-gut bacteria link: inconsistency in research findings
When autistic children were tested for scientific research, it was discovered that they had a greater diversity of gut bacteria than others. However, another study contradicted the findings and claimed that autistic people have lower bacterial diversity than others. A third study was also conducted, but it showed no difference in bacterial diversity.
As StudyFinds.org reports, the different results of the three studies were cited as evidence in support of the microbiome-autism hypothesis. Other trials also yielded inconsistent results, leading researchers to realize that the problem was due to the small sample size combined with the huge database.
When a similar study was conducted with larger samples, it revealed that the microbiome accounted for only 3 to 5 percent of the variation in autism.
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Can diet planning make a difference in autism?
A study conducted with 247 people showed that there is a huge difference in diet between autistic children and other children. People with autism often choose limited amounts of food, as certain ingredients can affect the composition of bacteria in the gut.
Rather than finding evidence that dietary choices and gut bacteria caused autism, experts claimed that the opposite was true. He said that due to behavioral changes due to autism, there is a difference in eating patterns.
Despite evidence to the contrary, many people still link gut bacteria and autism. This is due to what researchers call “pseudo-triangulation”, or the presence of evidence collected from independent sources that does not hold up when examined closely.
,Despite what you may have heard, read, or watched on Netflix, there is no evidence that the microbiome contributes to autism,” said first author and developmental neurobiologist Kevin Mitchell of Trinity College Dublin. The study finds. “I don’t think it’s worth spending more time and money on this topic. We know that autism is a highly genetic condition, and there is still a lot of work to be done on it.”
Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Always seek the advice of your doctor with any questions you may have about a medical condition.
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