For example, 45% reduction in symptoms from fecal transplant: https://news.ycombinator.com/item?id=48158494
> Prior to the study, 83% of participants had "severe" autism. Two years later, only 17% were rated as severe, 39% as mild or moderate, and incredibly, 44% were below the cut-off for mild ASD.
Incredible! Sure, there could be a genetic component to what flourishes, or ever seeded, in one's microflora, but there's definitely some external complexities involved here.
Of all the misguided, abusive studies. It beggars belief that a board somehow approved this.
What happened here is simple: the autistic kids got better at masking in order to placate the researchers who were shoving poop up their butts. In the hope of making it stop.