https://academic.oup.com/aje/article/180/9/890/2739176/Maternal-Intake-of-Supplemental-Iron-and-Risk-of https://academic.oup.com/aje/article/180/9/890/2739176/M

https://academic.oup.com/aje/article/180/9/890/2739176/Maternal-Intake-of-Supplemental-Iron-and-Risk-of https://academic.oup.com/aje/article/180/9/890/2739176/Mater... >Low iron intake significantly interacted with advanced maternal age and metabolic conditions; combined exposures were associated with a 5-fold increased ASD risk. Maternal age and iron intake aren't genes. Neither is folate: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114515002470 https://www.cambridge.org/core/services/aop-cambridge-core/c... and if I'm reading this odds ratio (0.26) correctly, maternal folate supplementation may prevent or ameliorate up to 74% of cases of autism: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4167931/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4167931/