A study suggests that people with diets high in seafood may face a greater risk of exposure to PFAS -- the family of human-made toxins known as 'forever chemicals' -- than previously thought. The researchers stress the need for more stringent public health guidelines that establish how much seafood people can safely consume to limit their exposure, particularly in coastal areas where seafood is frequently eaten.
A study suggests that people with diets high in seafood may face a greater risk of exposure to PFAS -- the family of human-made toxins known as ' forever chemicals ' -- than previously thought. The researchers stress the need for more stringent public health guidelines that establish how much seafood people can safely consume to limit their exposure, particularly in coastal areas where seafood is frequently eaten.
"Understanding this risk-benefit trade-off for seafood consumption is important for people making decisions about diet, especially for vulnerable populations such as pregnant people and children," Romano said. In humans, PFAS are associated with cancer, fetal abnormalities, high cholesterol, and thyroid, liver, and reproductive disorders. The chemicals have accumulated in soil, water, and wildlife, and studies have shown that nearly all Americans have measurable amounts in their blood.
The prevalence of PFAS in the environment makes it difficult to know exactly where and how the chemicals enter the marine food chain, the researchers report. Some shellfish may be especially vulnerable to the buildup of PFAS in their flesh due to feeding and living on the seafloor, as well as their proximity to sources of PFAS that are near the coast.
But people in New Hampshire do not eat seafood uniformly. More than half of the people who ate seafood in the week before the survey lived on the state's coast or near the border with Massachusetts. More than 60% of people with a household income below $45,000 per year reported consuming seafood at least once per week, whereas people with higher household incomes reported eating seafood less often.
Seafood PFAS Forever Chemicals Public Health Exposure Study
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