CodeE297 · INS 297
TypeAcidity regulator
Made fromSynthetic or fermentation.
Found insoft drinks, sweets, jams, sauces and processed foods
What is E297?
E297 is Fumaric acid, an acidity regulator. Synthetic.
Also written as: INS 297, E-297, E 297. INS is the international numbering system used outside Europe, including on labels in Asia, Australia and the Middle East.
What to do
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Frequently asked questions
Is E297 halal?
E297 (Fumaric acid) is halal. Synthetic.
What is E297 made from?
Synthetic or fermentation.
What is E297 used for?
E297 is used as an acidity regulator, typically in soft drinks, sweets, jams, sauces and processed foods.
What should I do if a product contains E297?
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Related E-numbers
E260Acetic acidE261Potassium acetateE262Sodium acetatesE263Calcium acetateE270Lactic acidE296Malic acidE300Ascorbic acid (vitamin C)
Last reviewed 2026-10-06. How we decide · Suggest a correction