Per- and polyfluoroalkyl substances (PFAS) is a group of thousands of different chemicals with versatile effects ranging from heat resistance to repelling grease, oil, and water. These qualities have made PFAS a popular additive in products like non-stick pans and food packaging.
PFAS are incredibly persistent and may take years to leave the body. Because of this and their widespread occurrence, many researchers have attempted to quantify PFAS’ effects. Evidence currently links PFAS to altered metabolism, fertility changes, obesity, and immune system weakness.

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