Is supermarket chicken a hidden source of chlorinated paraffins?

What's actually in it

Chlorinated paraffins are oily chemicals used in metalworking, plastic softening, and flame retardants. They drift onto feed crops, into water, and onto factory floors. Animals raised in those settings build the chemicals up in their fat, especially the chicken skin and dark meat.

The shorter-chain types (SCCPs) are the worst because they don't break down and stick around in the body for years.

What the research says

A 2026 study in Foods tested chicken meat from multiple regions and found chlorinated paraffins in every sample. The dose for adults was small but real. Kids and people who eat chicken every day got the most. Chicken skin and fat had higher levels than breast meat.

The team flagged certain feed sources and processing plants as likely entry points.

For lower exposure, trim visible fat and skin off chicken before cooking. Pick organic or pasture-raised brands when budget allows, since their feed is less likely to be contaminated. Variety helps too: rotate in beans, eggs, and fish so chicken isn't the only daily protein.