Is E170 halal or haram?
Calcium carbonate · Color / anti-caking agent
E170 (Calcium carbonate) is generally classified as halal. Mineral (limestone / chalk).
What is E170?
E170, listed on labels as Calcium carbonate, is a colouring agent that gives food a specific hue. You'll most often find it in packaged and processed foods.
Is E170 halal? The verdict
Good news — you can treat E170 as halal. Mineral (limestone / chalk). The additive itself needs no special certification. Keep in mind the finished product can still contain other ingredients that aren't halal, so always read the full list.
How to check E170 on a label
If you see E170 (or "Calcium carbonate") in an ingredient list, no further checking is needed for this additive — focus your attention on meat, animal fats, gelatin and flavourings instead.
Other names & label terms to scan for
Calcium carbonateChalkINS 170E170
Bottom line
E170 is halal. Safe to consume as far as this additive is concerned.
Stop guessing in the aisle
Halal Food AI flags E170 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.