A years-long study from the Keck School of Medicine of USC — partially funded by the National Institutes of Health — has found evidence that dietary patterns relate to levels of per- and polyfluoroalkyl substances (PFAS, aka forever chemicals) in the body over time.

PFAS are known to be harmful to health: They can disrupt hormones, weaken bones and increase disease risk. They are already known to be used in fabrics, furniture and other household items — but they are also hard to get rid of.

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