Carbon Dioxide
Also known as: E290, Carbonic acid gas
Carbon dioxide is an FDA GRAS substance under 21 CFR 184.1240 and is authorized as food additive E290 in the EU with no specified ADI. It is naturally produced by the human body and presents no toxicity at food-use levels.
What it is
Carbon dioxide (CO2), an inert gas used in foods primarily for carbonation and as a propellant or atmosphere.
Carbonating agent, propellant, and modified-atmosphere packaging gas to inhibit spoilage.
What regulators actually say
"Carbon dioxide (CAS Reg. No. 124-38-9) is a colorless and odorless gas. ... The ingredient is used in food as a propellant and aerating agent and as a processing aid."
Regulatory status
United States — FDA
GRAS under 21 CFR 184.1240 for use as a propellant, aerating, and processing agent.
European Union — EFSA
Authorised food additive E290 (Annex II/III, Reg. (EC) No 1333/2008) with no numerical ADI.
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