Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of synthetic chemicals that have been used since the 1940s in various consumer products. They're called "forever chemicals" because they don't break down naturally in the environment.
PFAS are commonly found in:
- Non-stick cookware
- Water-resistant clothing
- Stain-resistant fabrics and carpets
- Food packaging
- Some cosmetics
Research has linked PFAS exposure to serious health effects including cancer, thyroid disease, immune system problems, reproductive issues, and developmental delays in children.
Because PFAS accumulate in the body over time, even low-level exposure from multiple sources can build up to harmful levels. To reduce exposure, avoid non-stick cookware (choose stainless steel or cast iron), skip "stain-resistant" treatments on furniture, and look for PFAS-free certifications.