PFAS: The Silent Toxin Among Us

PFAS – short for per- and polyfluoroalkyl substances – might not ring a bell, but you've probably heard of Teflon, a substance used to make nonstick versions of cookware. Teflon owes its slick surface to PFAS, a group of synthetic chemicals known for their incredibly strong carbon-fluorine bonds. These bonds make PFAS highly resistant to heat, water, grease, and wear and tear, which is why they’ve earned their nickname, “forever chemicals.”

PFAS chemicals offer convenience but come with tremendous hidden costs. These chemicals can seep into our environment during production, use, and disposal, contaminating our bodies, water, air, and food. Research has shown that high PFAS exposure is linked to high cholesterol, thyroid disease, liver damage, and even cancers like kidney and testicular cancer. Recent research published in the journal Science Advances found that ocean waves crashing onto shores actually release more PFAS into the air than industrial polluters.

PFAS contamination in drinking water is a major concern, with many countries reporting levels that exceed recommended safety limits. While governments have set restrictions on certain PFAS compounds in drinking water to address this issue, individuals can also take measures to reduce their exposure. Installing water filters is one effective option.

There are steps you can take to lower your exposure. For example, nonstick pans can release PFAS if they’re not used carefully. To minimize the risk, avoid preheating empty pans and keep the temperature below 230 degrees Celsius or 450 degrees Fahrenheit to avoid degrading the nonstick coating. If you’re concerned about potential risks, consider switching to alternatives like stainless steel, cast iron, or ceramic cookware. Food packaging, like pizza boxes, food wraps, takeout containers, and disposable coffee cups, often contain PFAS. By cutting back on fast food and takeout or by using your own reusable containers, you can help reduce your environmental footprint.

Items like clothing, curtains, carpeting, or products advertised as water-, grease-, or stain-resistant are likely to contain PFAS. Websites like PFAS Central provide useful lists of brands offering PFAS-free products. If information on an item isn’t clear, contact customer service to inquire about PFAS content or request PFAS-free options, which can encourage companies to develop safer alternatives.

Studies suggest that eating foods high in fiber and folate – like fruits, vegetables, and grains – can help reduce PFAS absorption and buildup.