What is E421?

Mannitol is a type of sugar alcohol used as a sweetener and medication. It is used as a low-calorie sweetener as it is poorly absorbed by the intestines. E421 sits in the E400–E499 series, which in the EU classification mainly covers thickeners, stabilisers and emulsifiers.

What is E421 used for?

E421 belongs to the sweeteners group. Sweeteners (such as aspartame and sucralose) add sweetness with little or no calories. They are approved but widely discussed.

Is E421 safe?

E421 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 E421 appears on labels

On food packaging you'll find E421 either as the number “E421” or by the name “Mannitol” 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 E421 vegan?

Yes, E421 is suitable for vegans.