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Benzoate

Moderate concern

Sodium benzoate is GRAS under 21 CFR 184.1733 at up to 0.1% in food. When combined with ascorbic acid (vitamin C) in beverages, can form trace benzene, a known carcinogen — FDA has investigated this issue and asked manufacturers to reformulate.

Found in

29 products

What it is

A general term for salts or esters of benzoic acid; in food typically refers to sodium benzoate, used as an antimicrobial preservative.

Preservative; inhibits growth of molds, yeasts, and bacteria, especially in acidic foods.

Why it's flagged

Can react with ascorbic acid to form trace benzene (Group 1 carcinogen)
Possible exacerbation of hyperactivity in sensitive children when combined with synthetic dyes

What regulators actually say

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Regulatory status

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