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Forkin
E633No known concernIn 11 productsTypically animal-derived

Calcium inosinate

Function: Flavour enhancers

E633 is the European food-additive number for Calcium inosinate, a flavour enhancer used to bring out the existing taste of a food. Calcium inosinate (E633) is a food additive used as a food additive.

What is E633 used for?

Calcium inosinate (E633) is a flavour enhancer used to bring out the existing taste of a food. It is added during food production for a technological purpose rather than for nutrition. See all Flavour enhancers (E-numbers).

Is E633 safe or restricted?

E633 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as “No known concern” and does not make health claims. See the methodology for how regulatory levels are assigned, or the guide to how EU additives are approved, re-evaluated and banned.

Is E633 vegan or vegetarian?

Calcium inosinate (E633) is typically derived from animal sources and is generally not suitable for vegans or vegetarians.

The production source can vary between manufacturers. The Forkin app shows product-specific vegan and vegetarian signals where available, based on ingredient and label data. Always read the label for allergens.

Which foods contain E633?

E633 appears in 11 of the 5.0 million products in Forkin's catalogue, most often in Instant Noodles, Tortilla Chips, and Rice Cakes.

  • Instant Noodles3
  • Tortilla Chips1
  • Rice Cakes1
  • Gummy Candy1
  • Ice Cream1
  • Pâté1
  • Soup1
  • Strawberry Jam1

Often appears alongside

Additives most frequently found in the same ingredient lists as E633 across the catalogue.

Counts reflect Forkin's independently enriched product catalogue and update as new products are added. They are not a market-share statistic.

Frequently asked questions about E633

What is E633?
E633 is the E-number for Calcium inosinate, a flavour enhancer used to bring out the existing taste of a food. Calcium inosinate (E633) is a food additive used as a food additive.
What is E633 used for?
Calcium inosinate (E633) is a flavour enhancer used to bring out the existing taste of a food. Manufacturers add it during processing rather than for nutrition. The Forkin app shows which products in your scan history actually contain it.
Which foods contain E633?
E633 appears in 11 of the 5.0 million products in Forkin's catalogue, most often in Instant Noodles, Tortilla Chips, and Rice Cakes. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
Is E633 vegan or vegetarian?
Calcium inosinate (E633) is typically derived from animal sources and is generally not suitable for vegans or vegetarians. The Forkin app shows product-specific vegan and vegetarian signals where available, based on ingredient and label data, since the source can vary between manufacturers.
Is E633 safe, and is it banned anywhere?
E633 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as ‘No known concern’ and does not make health claims. See the methodology page for how regulatory levels are assigned, and the Forkin app for the full profile, including acceptable daily intake (ADI) and restrictions by country.

Related additives (Flavour enhancers)

Regulatory-level classification based on EFSA re-evaluations and exposure assessments, IARC monograph groupings, the EU food additive register (Regulation (EC) No 1333/2008) and mandatory warning labels, ECHA harmonised CLP classifications, FAO/WHO JECFA acceptable-daily-intake reviews, and national measures (US FDA, Health Canada, California OEHHA Proposition 65). Informational only. Not medical or dietary advice. See methodology for the rubric.