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E553Anti-caking agentModerate concern
Talc
In plain words
The short version
Magnesium silicate mineral — used as an anti-caking agent, but historic asbestos contamination is a known concern.
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
ADI not specified — considered safe in purified food-grade form. Inhalation of unpurified talc is a documented respiratory hazard; the food-additive form's safety depends entirely on asbestos-free purification standards. Several lawsuits have resulted from cosmetic-talc contamination.
The detail
Educational information only. Not medical or dietary advice.