E101 — Riboflavin (vitamin B2)
No concern
E101 (Riboflavin (vitamin B2)) raises no animal-source question. Vitamin B2, which doubles as a yellow-orange colour.
Why it raises no question
It is grown by fermentation or made in a laboratory, not taken from an animal.
Where you meet it
Breakfast cereals, sauces, dairy desserts, vitamin drinks.
What to do in the shop
Nothing special to do for E101 itself. Read the rest of the list: a product is only as clear as its least clear ingredient.
A status here describes the additive in general — a specific product can be different. The same number can be made from plant or animal material depending on the manufacturer, and the label does not say which.
Questions people ask
Is E101 halal?
E101 (Riboflavin (vitamin B2)) raises no animal-source question, so on its own it is not a problem. The rest of the ingredient list still decides the product.
What is E101 made from?
It is grown by fermentation or made in a laboratory, not taken from an animal.
Related additives
- E100 — Curcumin · No concern
- E131 — Patent Blue V · No concern
- E132 — Indigotine (indigo carmine) · No concern
Check a product, not just a number
An additive's status describes the additive in general. What matters is the whole ingredient list on the packet in your hand.
This is information, not a fatwa. These statuses combine published scholarly positions with ingredient analysis, and they can be incomplete or out of date. For anything that matters, confirm with the manufacturer and with a qualified authority.