Calcium Benzoate (E213)
Also known as: E213, Calcium benzoate, Calcium benzoate dihydrate
Calcium benzoate carries the same substance-level concerns as sodium benzoate (E211): in the presence of ascorbic acid (vitamin C) and heat or light, both can form trace benzene, a known human carcinogen. EFSA confirmed an ADI of 5 mg/kg bw/day in 2016 covering E210-E213 collectively.
What it is
Calcium salt of benzoic acid (C6H5COO)2Ca; the calcium analog of the more common sodium benzoate (E211). Approved as a preservative against yeasts and molds in acidic foods.
Preservative; inhibits microbial growth in beverages, jams, and pickled products.
Why it's flagged
- Benzene formation pathway when combined with ascorbic acid + heat/light
- Southampton Study link to hyperactivity in sensitive children
- Allergic reactions in pseudo-allergy-prone individuals
Regulatory status
United States — FDA
Approved as a chemical preservative under 21 CFR 184.1733 (calcium benzoate) — limits apply.
European Union — EFSA
Authorised preservative; collective ADI 5 mg/kg bw/day (EFSA 2016 re-evaluation of E210-E213).
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