Aluminium
Also known as: E173, Aluminum, element 13
Aluminium (E173) is authorized in the EU only as an external coating for sugar-coated confectionery and cake decoration. EFSA set a tolerable weekly intake of 1 mg aluminium per kg body weight and noted this limit is likely exceeded in a significant part of the population, with chronic exposure linked to neurotoxic and reproductive effects in animal studies.
What it is
Aluminium metal in finely powdered or leaf form used as a colorant.
Surface decoration on confectionery and cake decorations (silver/metallic leaf).
Why it's flagged
- EFSA tolerable weekly intake (1 mg Al/kg bw/week) is likely exceeded in parts of the population
- cumulative exposure from multiple aluminium-containing additives
- neurotoxic and reproductive effects in animal studies
What regulators actually say
"EFSA established a tolerable weekly intake (TWI) of 1 mg aluminium per kg body weight, taking into account the potential accumulation of dietary aluminium in the body. This TWI applies to all aluminium compounds in food, including additives. EFSA's 2008 opinion concluded that the TWI is likely to be exceeded in a significant part of the European population."
Regulatory status
United States — FDA
Not approved as a color additive for food in the US (21 CFR Parts 73, 74).
European Union — EFSA
Authorized in EU only for external coating of sugar-coated confectionery and cake decoration (Regulation EU 380/2012).
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