How Did PFAS Wind Up in Kale?
PFAS are known for theirwater-, heat-, and grease-resistant properties.
These chemicals are commonly used in waterproof clothing, nonstick cookware, cosmetics, fire-fighting foams, and more.
Photo Illustration by Lecia Landis for Verywell Health; Getty Images
When these goods are manufactured and disposed of in landfills, PFAS can leach into soil and waterways.
The toxins are now ubiquitous.
Theyre found in the bloodstream of virtually every person in the U.S.
Farmers sometimes use biosolidsthe sludge leftover when wastewater is treatedto fertilize their crops.
These biosolids can be contaminated withhigh levels of PFAS, which make their way into plants as they grow.
Its not clear whether the kale samples tested were grown in sludgeor watered with contaminated water.
Can You Avoid PFAS in Food?
Just how concerned should people be about the PFAS in their food?
Thats exactly the question that we should be asking.
Other food sources may contain even more PFAS.
Some states have banned theuse of PFAS in food packaging, but there are no federal regulations yet.
She said the recommendation holds true despite the new study findings.
In the meantime, theres no obvious way to clean PFAS from food.
But there isnt much data to indicate that cooking or washing methods will work on vegetables.
This is a ticking time bomb for both human health and environmental impacts, Verkerk said.
What This Means For You
Its nearly impossible to avoid PFAS exposure altogether.
you’re able to find a list of PFAS-free productshere.
Alliance for Natural Health USA.PFAS in kale pilot study.
2021;40(3):606-630. doi:10.1002/etc.4890
Food and Drug Administration.Questions and answers on PFAS in food.
