What is E170?

E170 (Calcium carbonate) is a colours food additive. White mineral, also used as a calcium supplement. E170 sits in the E100–E199 series, which in the EU classification mainly covers colours.

What is E170 used for?

E170 belongs to the colours group. Colours are added to give or restore colour to food. Some are natural, like curcumin from turmeric; some synthetic dyes are debated and require warning labels in the EU.

Is E170 safe?

E170 is considered safe at the levels used in food and is approved for use in the EU. “Safe” means it is approved in the EU and regarded as safe at the levels used in food.

How E170 appears on labels

On food packaging you'll find E170 either as the number “E170” or by the name “Calcium carbonate” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.

Is E170 vegan?

Yes, E170 is suitable for vegans.