Numerous studies have been conducted to examine the relationship between autism and folic acid supplements before and during pregnancy. Autism is a spectrum disorder that is difficult to diagnose because the range of symptoms vary from one extreme to another. Autism can be categorized by verbal and non-verbal communication difficulties, social-interaction challenges and the tendency to engage in repetitive behavior. These symptoms can vary widely so the American Psychiatric Association created three different levels of autism. A person diagnosed with level 1 requires support, level 2 requires substantial support and level 3 requires very substantial support. According to the Centers for Disease Control and Prevention 1 in 68 children are affected
