Pilot study finds fiber helps reduce PFAS levels in the body

By Sarah Howard | Environmental Health News | March 21, 2025

Read the full article by Sarah Howard (Environmental Health News)

"A Canadian clinical trial published in the journal Environmental Health, found some reductions of PFAS concentrations in people taking dietary fiber supplements for 4 weeks.

In short:

The fiber intervention was successful at decreasing levels of PFOA and PFOS, long-chain PFAS that are now being replaced with short-chain PFAS.
While PFAS levels were not linked to poor cholesterol levels, some of the short-chain PFAS were linked to markers of liver damage.
This was the first time some of these short-chain PFAS have been found in Canadians.

Key quote: “Results from this pilot analysis suggest a potentially practical and feasible intervention that may reduce human body burdens for some PFASs.”