When mothers eat three sizeable servings of fish each week during pregnancy it may benefit children’s brains for years to come, according to a large study in Spain.
Researchers followed nearly 2,000 mother-child pairs from the first trimester of pregnancy through the child’s fifth birthday and found improved brain function in the kids whose mothers ate the most fish while pregnant, compared to children of mothers who ate the least.
Even when women averaged 600 grams, or 21 ounces, of fish weekly during pregnancy, there was no sign that mercury or other pollutants associated with fish were having a negative effect that offset the apparent benefits.
“Seafood is known to be an important source of essential nutrients for brain development, but at the same time accumulates mercury from the environment, which is known to be neurotoxic,” lead author Jordi Julvez, of the Center for Research in Environmental Epidemiology in Barcelona, said in an email….
….The researchers also saw a consistent reduction in autism-spectrum traits with increased maternal fish consumption.
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