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E101Fine

Riboflavin (vitamin B2)

Group: Colours

Harm level1 of 5No concern

In plain words

Riboflavin is vitamin B2, which also gives foods a yellow-orange colour. It is added to cereals, dairy products, sweets and fortified foods.

Where you find it: cereals, dressings, confectionery

Our recommendation

No need to avoid it.

Possible risks and effects

  • No relevant risk known at normal intake; bright yellow urine is harmless.

For experts

Vitamin B2 or its sodium riboflavin-5'-phosphate salt, produced mainly by fermentation. EFSA's 2013 re-evaluation raised no safety concern and found no ADI necessary; excess is excreted in urine.

Check another E-number

More from this group

E171Titanium dioxideE102TartrazineE104Quinoline yellowE110Sunset Yellow FCFE122Azorubine (carmoisine)E124Ponceau 4RE129Allura Red ACE120Carmine (cochineal)

This information is educational and based on EFSA assessments and available studies; it does not replace medical advice. With allergies, intolerances or illness, follow your doctor’s advice.