prenatal diet
ADHDと魚を通しての水銀摂取との因果関係を指摘する研究です。大変、興味深いです。prenatal 「出産前」のdiet「食餌」のあり方に一石を投じています。（UG）
A new study highlights the difficulty pregnant women face while eating for two, finding that more mercury exposure leads to a higher incidence of ADHD symptoms, while more fish consumption -- the main source of mercury exposure -- leads to a decreased risk.
"How much fish you eat is not equivalent to how much mercury you are exposed to," said study author Dr. Susan Korrick of Brigham and Women's Hospital. "I think the public health conclusion that I would come to is that one can benefit from fish consumption, but it's important to try to consume fish that are low in mercury."
Researchers at Brigham and Women's tested more than 400 women for mercury about 10 days after they gave birth between 1993 and 1998, and asked them to fill out a survey about their fish consumption. They measured the mercury in samples of the mothers' hair. When the children were eight, researchers tested their cognitive abilities with a parent questionnaire and other tests, searching for symptoms of ADHD. (It is important to note these children were not diagnosed with clinical ADHD, but only exhibited some of the symptoms.)
Symptoms of ADHD, or attention deficit hyperactivity disorder, include inattention, hyperactivity and impulsive behavior, according to the National Institutes of Health.
Researchers say cutting fish out of the prenatal diet to avoid mercury exposure entirely is a bad idea, and pregnant women should look for fish that are low in mercury, such as salmon.
