A team of researchers led by Sharon K. Sagiv, PhD, MPH, from Boston University School of Public Health, suggested that pregnant women should stay away from consuming some types of seafood. The study found that pregnant women who ate more than two servings of fish high in mercury per week could carry kids with attention deficit hyperactivity disorder-related behaviors (ADHD).
The study titled “Prenatal Exposure to Mercury and Fish Consumption During Pregnancy and Attention-Deficit/Hyperactivity Disorder–Related Behavior in Children” is being published in the Archives of Pediatrics and Adolescent Medicine.
The study was conducted in New Bedford, Massachusetts, for a group of babies born from 1993 to 1998. About 421 mothers had given their hair samples just in time before the infants were born, so researchers can test their mercury levels. Researchers later conducted a followed up study to inspect those kids as they reached at age 8. Researchers also examined if those kids had any ADHD-related behaviors as they have entered an elementary school.
Fish high in mercury include swordfish, shark and king mackerel. Fish and seafood low in mercury include shrimp, salmon and canned light tuna.