Back to catalogSafety
E466ThickenerModerate concern
Carboxymethyl Cellulose
In plain words
The short version
A modified cellulose gum used to thicken, stabilize, and add texture in many processed foods.
Why we flag it amber
It's permitted and generally considered safe, but there are a few reasons to be mindful — like sensitivities in some people, debated studies, or intake limits. The Safety section below explains the specifics.
Safety profile
No ADI specified by JECFA. Recent animal and human studies have raised concerns that some emulsifiers, including CMC, may alter the gut microbiome and promote low-grade inflammation. Evidence in humans is still emerging.
The detail
Educational information only. Not medical or dietary advice.