Ingredient · E101

Riboflavins

Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Riboflavin is primarily added to foods as a nutrient to fortify them, helping to …

What is Riboflavins?

Riboflavins, also known as vitamin B2, are water-soluble vitamins essential for human health. They occur naturally in foods such as eggs, milk, meat, and green vegetables. Industrially, they can be produced through chemical synthesis or microbial fermentation.

Is Riboflavins gluten-free?

It is not a source of gluten.

Is Riboflavins a major allergen?

Riboflavin is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Riboflavins used for?

Riboflavin is primarily added to foods as a nutrient to fortify them, helping to prevent deficiencies.

Is Riboflavins safe?

Riboflavin (E101) is an authorised food additive in Great Britain, listed on the Register of Food Additive Authorisations.

Why it's used

Riboflavin is primarily added to foods as a nutrient to fortify them, helping to prevent deficiencies. It is also used as a yellow colourant in various food products. Common examples include breakfast cereals, baked goods, and dairy products.

Health notes

Riboflavin (E101) is an authorised food additive in Great Britain, listed on the Register of Food Additive Authorisations. It is also a vitamin, and its addition to foods helps maintain adequate intake. EFSA has evaluated its safety and established an acceptable daily intake (ADI) for riboflavin as a nutrient. At typical dietary intakes from fortified foods and natural sources, it is considered safe. There are no widespread controversies regarding its use as a food additive or nutrient.

Regulatory status

Authorised in Great Britain (FSA register): England, Scotland, Wales. FSA register of authorised products

Permitted uses in the EU

Riboflavins · legislation: (EU) No 2015/1378

Food categoryMaximum level
4.2.1 dried fruit and vegetablesNo numerical limit listed
4.2.2 fruit and vegetables in vinegar oil or brineNo numerical limit listed
4.2.3 canned or bottled fruit and vegetablesNo numerical limit listed
4.2.4.1 fruit and vegetable preparations excluding compoteNo numerical limit listed
4.2.6 processed potato productsNo numerical limit listed
8.3.1 Non-heat-treated processed meatNo numerical limit listed
8.3.3 Casings and coatings and decorations for meatNo numerical limit listed
9.2 Processed fish and fishery products including molluscs and crustaceansNo numerical limit listed
14.2.7.1 Aromatised wines100
14.2.7.2 Aromatised wine-based drinks100

Maximum levels are shown as published (mg/kg or mg/l, depending on the food). Some entries carry extra conditions and group authorisations are not listed here, so check the full entry before relying on a figure.

Substance is included in Group II, see also authorisation for Group II

Sources: Food Standards Agency (OGL v3); European Commission, Food Additives Database.

Allergen info

Riboflavin is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. It is not a source of gluten.

Foods that contain Riboflavins

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.