Children exposed to low levels of mercury in the womb through their mothers eating fish high in the metal have an increased chance of developing attention deficit-related disorders, according to a study that suggests pregnant women avoid some types of seafood.

The research online today in the Archives of Pediatrics and Adolescent Medicine also showed that pregnant women who ate more than two servings of fish a week, most likely those low in mercury such as shrimp, salmon and canned light tuna, have a 50 percent reduced risk of having children with attention deficit hyperactivity disorder-related behaviors, said senior study author Susan Korrick.

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Source: Prenatal Mercury Levels From Fish Tied to Attention Issue – Bloomberg Business