E-code guide
E101Riboflavin (Vitamin B2)
HalalColorant
E101

Riboflavin (Vitamin B2)

Yellow color

Also known as vitamin B2

JAKIM Handbook 2010 and MUIS classify as doubtful; SANHA classifies as halal.
Based on 3 cited authorities. Confidence: medium.

What authorities say

3 authorities on record
2say Doubtful1says Halal
Saying Doubtful2 of 3
2
MUIS
MUIS Food Additive Listing (2016): Manufactured from yeast or other fermenting organisms. May also be synthesised from xylene, ribose or alloxan.
Saying Halal1 of 3

Why this verdict

E101 is riboflavin (vitamin B2), a yellow colour and an essential nutrient. Commercial food-grade riboflavin is produced by microbial fermentation or chemical synthesis. SANHA classifies E101 as Halaal and lists its source as microbiological or synthetic. JAKIM Handbook 2010 lists it Mushbooh only on the theoretical possibility of extraction from animal sources (pork liver or kidney), a route not used at food-additive scale, and MUIS marks it syubhah as a general source caution. On the production fact, E101 is halal.

Food-safety note
Permitted as a food colour and nutrient in Australia and New Zealand under the Food Standards Code (Schedule 15), at good manufacturing practice. Riboflavin (vitamin B2) is an essential nutrient, with no safety concerns at the levels used in food. (Source: FSANZ; Food Standards Code Schedule 15.)

Common questions

Is E101 halal?

Riboflavin (Vitamin B2) (E101) is classified halal. JAKIM Handbook 2010 and MUIS classify it as doubtful; SANHA classifies it as halal.

What is E101 made from?

Riboflavin (Vitamin B2) (E101) is produced by microbial fermentation.

Last reviewed by the HalalHQ research team in June 2026.