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E290Fine

Carbon dioxide

Group: Other

Harm level1 of 5No concern

In plain words

It is the gas that puts bubbles in drinks and replaces air in packaging so food spoils more slowly. You find it in sparkling water, soft drinks, beer, sparkling wine and in packaged salads or meat.

Where you find it: fizzy drinks, protective packaging gas

Our recommendation

No need to avoid it.

Possible risks and effects

  • No relevant risk known at normal intake.
  • Fizzy drinks may cause bloating or worsen heartburn in sensitive people.

For experts

Carbon dioxide (CO2) is a natural product of respiration and fermentation; in food it serves as a carbonating agent, packaging gas and propellant. In modified-atmosphere packaging it inhibits aerobic microorganisms. Its use in food is not considered a safety concern and it has no ADI.

Check another E-number

More from this group

E551Silicon dioxide (silica)E554Sodium aluminium silicateE900DimethylpolysiloxaneE1520Propylene glycolE535–E538FerrocyanidesE422GlycerolE509Calcium chlorideE516Calcium sulphate

This information is educational and based on EFSA assessments and available studies; it does not replace medical advice. With allergies, intolerances or illness, follow your doctor’s advice.