A Department of Health and Human Services (HHS) report commissioned by Robert F. Kennedy Jr. indicates Tylenol use during pregnancy is one factor contributing to the U.S. autism epidemic, according to media reports.

Sources close to the matter said low levels of folate as well as the use of the acetaminophen-based drug will be named in the forthcoming HHS autism report as among potential causal factors behind autism.

Kennedy, secretary of the HHS, told Fox and Friends last week that his agency w...