Is E170 halal or haram?
Calcium carbonate · Color / anti-caking agent
E170 (Calcium carbonate) is generally classified as suspect (mashbooh). Usually mined limestone or chalk, but grades made from animal sources exist and the label does not say which was used, so the listing the app follows marks it doubtful.
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
E170 is mashbooh (doubtful). Usually mined limestone or chalk, but grades made from animal sources exist and the label does not say which was used, so the listing the app follows marks it doubtful. Manufacturers aren't required to print the source on the label, so unless the pack states a plant/vegetable source or carries a recognised halal certification (HMC, JAKIM, MUI, IFANCA), the safest choice is to avoid it.
How to check E170 on a label
Scan the ingredient list for E170 and its other names. If it's present and the source isn't stated, treat the product as doubtful. A barcode or photo scan with Halal Food AI flags E170 automatically and tells you whether the product declares a halal source.
Other names & label terms to scan for
Calcium carbonateChalkINS 170E170
Bottom line
E170 is doubtful (mashbooh) — avoid unless the source is stated as halal or the product is halal-certified.
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.
Prefer to check as you shop? The halal barcode scanner app scans a barcode or an ingredient photo and gives you the verdict on the spot.