HalalCodeCheck logo
HalalCodeCheck
Yes - Halal

E170

food colors

Calcium Carbonate (Chalk)

Also known as: ChalkLimestoneCalcium Carbonate
International label: INS 170
Status
Halal
Function
White food coloring, acidity regulator, calcium supplement

Halal

Is E170 (Calcium Carbonate) halal?

Generally accepted as halal. This additive is typically derived from plant or synthetic sources and does not contain any prohibited ingredients according to Islamic dietary laws.

What to do

Safe to buy. This additive is permissible under Islamic dietary law.

See which foods use it →

About E170

It is a inorganic chemical. Generally accepted as halal. This additive is typically derived from plant or synthetic sources and does not contain any prohibited ingredients according to Islamic dietary laws.

What is E170 made from?

  • limestone (mineral)
  • chalk (mineral)
  • oyster shells (animal - some products)

Scholarly Notes

Inorganic mineral - halal. Oyster shell calcium carbonate is also halal (shellfish are permitted). No concerns.

Foods that commonly contain E170

Food Category Guide

E170 is common in chewing gum — see the full halal guide →

white confectionery coatings chewing gum bread (calcium fortification) antacid tablets

Always check the ingredient label on the specific product - manufacturers may change formulations.

Frequently Asked Questions

Is E170 (Calcium Carbonate (Chalk)) halal?

E170 (Calcium Carbonate (Chalk)) is classified as Halal. Generally accepted as halal. This additive is typically derived from plant or synthetic sources and does not contain any prohibited ingredients according to Islamic dietary laws.

What is E170 used for?

E170 is used as a white food coloring, acidity regulator, calcium supplement in food products.

What foods contain E170?

E170 (Calcium Carbonate (Chalk)) is commonly found in: white confectionery coatings, chewing gum, bread (calcium fortification), antacid tablets.

What is E170 made from?

E170 can be derived from the following sources: limestone (mineral), chalk (mineral), oyster shells (animal - some products).

What are the other names for E170?

E170 may appear on food labels as: Chalk, Limestone, Calcium Carbonate.

food colors — 51 E-codes: 20 Halal, 2 Haram, 29 Mushbooh

Related E-Codes in food colors

E100
Curcumin/Turmeric
E101
Riboflavin (Vitamin B2)
E102
Tartrazine
E104
Quinoline Yellow
E110
Sunset Yellow FCF / Orange Yellow S
E120
Cochineal / Carminic Acid
E122
Carmoisine / Azorubine
E123
Amaranth
E124
Ponceau 4R / Cochineal Red A
E127
Erythrosine BS
E131
Patent Blue V
E132
Indigo Carmine / Idigotine

Know it by name?

E170 appears on many labels under its ingredient name. Read the plain-language guide:

Is Calcium Carbonate Halal?

Sources reviewed

Our E170 classification is checked against recognised halal certification bodies and mainstream Sunni scholarship before publishing. We do not treat community halal-status sites as authoritative.

  • HMC — Halal Monitoring Committee (UK)
  • HFA — Halal Food Authority (UK)
  • JAKIM — Dept. of Islamic Development (Malaysia)
  • MUI / LPPOM — Indonesian Ulema Council
  • IFANCA — Islamic Food & Nutrition Council (USA)
  • IslamQA — Sunni fatwa reference

Was this page helpful?

Disclaimer: This information is provided for educational purposes only. For religious rulings, consult a qualified Islamic scholar or halal certification authority. E-code classifications may vary based on source, manufacturing process, and school of thought.
Search More E-Codes Scan a Product Label

People also check

Mushbooh (Questionable) E100 Curcumin Mushbooh (Questionable) E101 Riboflavin Halal E102 Tartrazine Mushbooh (Questionable) E104 Quinoline Yellow

Stay informed

E-code statuses change — be first to know

Manufacturers switch suppliers. Scholars update rulings. Brands earn halal certification. We track every change and send one short weekly email.