Recently published research has found that children with autism had elevated levels of the plastic bisphenol A (BPA) compared to the children in the control group.  BPA is a contaminant in the food supply from its use in the plastic lining of cans and in other food packages such as plastic drink bottles. It may also be found on the slick surface coating of some types of register receipts.
This is a significant step compared to “we don’t know what causes it or how to stop it,” because BPA is something that could be avoided by prenatal women and people with autism. It is also good news because it may also be possible to reduce the risks of exposure to BPA by increasing intake of the plant phytoestrogen, soy genistein, or methyl donors such as vitamin B12 and folate and choline. 
/Disclosure: This information is provided for educational purposes and is not intended to provide individual health guidance. Please see a health professional for individual health care purposes./