Thus, said Leanne Cusack, a postdoctoral scholar in OSU's College of Public Health and Human Sciences and the corresponding author of the study, fish consumption advisories need to be precise and nuanced.

These advisories are often aimed at women of childbearing age because a developing fetus has greater sensitivity to the neurotoxic effects of methylmercury. The U.S. Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) recommend women in that group eat two meals of low-mercury fish per week.

"We also found total monthly fish consumption by women of reproductive age was higher than it had been in recent years, with women consuming more marine fish and shellfish but with no appreciable difference in the mean consumption of freshwater fish, tuna, swordfish and shark," Cusack was quoted as saying in a news release. "That's encouraging because marine and shellfish are associated with smaller increases in blood mercury. And also encouragingly, an average women who'd eaten fish nine or more times in the previous month had lower blood mercury levels than women who'd had fish at the same rate in 1999-2000."

Among ethnic groups in the United States, Asian Americans, Pacific Islanders, Alaska Natives and Native Americans ate fish the most often and showed the most mercury, and Mexican Americans consumed fish the least often and showed the smallest concentration of mercury.

Cusack said the differences in consumption and mercury levels by race and region illustrate the need for tailored fish advisories.

【国际英语资讯:Detailed advisories help bring down blood mercury concentrations among women】相关文章：

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