Autism Spectrum Disorder (ASD) is a complex, multifactorial condition with wide-ranging symptoms and severities. Much like dental malocclusion, which has nutritional roots in vitamin D and A deficiency, autism resists simple explanations [1].
Recently the HHS has announced it will be investigating what causes autism.
While genetics, environment, and toxic exposures are frequently discussed, nutritional status is often overlooked as a fundamental contributor to neurodevelopmental outcomes.
This article explores what causes autism, through the evidence that vitamin A deficiency—especially in its active form, retinol—is the most likely candidate for a cause of autism.
