Comparing E101 - Riboflavin vs E172 - Iron oxides and iron hydroxides

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Overview

E101 - Riboflavin

Riboflavin (E101) is a yellow food color that also happens to be vitamin B2. It adds a warm yellow tint to foods and drinks, and it is widely used for both coloring and vitamin fortification. It occurs naturally in many foods and has a long record of safe use in the U.S. and EU.

E172 - Iron oxides and iron hydroxides

Iron oxides and iron hydroxides (E172) are mineral pigments used to give foods red, yellow, brown, or black shades. They are insoluble, stable colors made under strict purity standards and are used mainly on the surface of foods, such as coatings and decorations. Rules vary by country: they are widely authorized in the EU, while uses in the U.S. are more limited.

Synonyms

E101

Riboflavin

Vitamin B2

Flavaxin

Vitamin B 2

Vitamin G

Riboflavine

Lactoflavine

Lactoflavin

E172

Iron oxides and iron hydroxides

Functions

colour

Origins

Microbiological

Synthetic

Mineral

Products

Found in 555 products

Found in 23 products

Search rank & volume

#2391.3K / mo🇺🇸U.S.

#47150 / mo🇺🇸U.S.

Awareness score

×23.83

over-aware

×0.44

under-aware

Search volume over time

Interest over time for 9 keywords in U.S. during the last 10 years.

Search history data is not available.

Popular questions

What does riboflavin do?
In the body, riboflavin (vitamin B2) helps enzymes produce energy (as FMN and FAD) and supports normal skin and vision. In foods, E101 is used as a yellow color and to fortify products with B2.
What does vitamin b2 do?
Vitamin B2 serves as the coenzymes FMN and FAD in energy metabolism and redox reactions. As E101 in foods, it also functions as a yellow colorant and nutrient fortifier.
What is vitamin b2 good for?
It supports energy release from food and helps maintain healthy skin, mouth, and vision. In foods, E101 is used to add yellow color and to enrich products with vitamin B2.
What is riboflavin good for?
Riboflavin is good for energy production and cellular respiration, helping keep skin and vision healthy. As an additive (E101), it provides yellow color and enables vitamin B2 fortification.
What foods have riboflavin?
Dairy (milk, yogurt, cheese), eggs, meats (especially liver), fish, green vegetables (e.g., spinach, broccoli), mushrooms, almonds, and fortified breads and cereals.