Aluminium Silicate
Also known as: E559, Kaolin
EFSA's 2008 reassessment lowered the tolerable weekly intake for aluminium to 1 mg/kg body weight due to neurotoxic and developmental concerns. E559 was de-authorized in the EU as a food additive in 2010.
What it is
Aluminium silicate (kaolin) — a naturally occurring inorganic compound used as an anticaking agent.
Anticaking/free-flow agent in powdered foods.
Why it's flagged
- aluminium neurotoxicity
- no longer authorized in EU
- exceeds dietary aluminium TWI
What regulators actually say
"EFSA established a tolerable weekly intake (TWI) for aluminium of 1 mg/kg body weight per week."
"Aluminium silicate (E 559) is removed from the Union list of food additives."
Regulatory status
United States — FDA
GRAS as kaolin (21 CFR 186.1256) for indirect food contact only
European Union — EFSA
De-authorized as food additive E559 (Regulation 380/2012)
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