Paul Saladino· MD
Higher levels of folic acid in core blood have actually been associated with increased rates of autism in children.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Higher levels of folic acid in core blood have actually been associated with increased rates of autism in children.
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This study found that higher levels of un metabolized folic acid, a synthetic form of folate found in most prenatal vitamins in umbilical cord blood in black children, was associated with a significantly higher rate of autism spectrum disorders.