E629: Calcium Guanylate
Main role: flavor enhancement
Also listed as: calcium 5'-guanylate
What is E629 (Calcium Guanylate)?
Calcium guanylate is a calcium salt of guanylic acid used for savory flavor enhancement. The nucleotide part provides the shared relationship with other guanylate enhancers.
What does it do in food?
Its main role is flavor enhancement. Flavor enhancement changes how a recipe tastes. It does not replace the food’s protein, vegetables, or other nutrients. Salt and other seasonings may still be present, so compare the complete label.
Food and formulation examples
- Savory seasoning blends
- Soup preparations
- Sauces
These examples describe formulation roles, not a list of unrestricted legal uses. Availability and permitted applications differ by country and food category.
Label names and ingredient questions
Look for E629, E 629, or the ingredient name. Related names and label terms include calcium 5'-guanylate. A family code can cover more than one specified form; check the full declaration when the distinction matters.
The guanylate family includes several salts with separate codes. Research the specific salt when a source discusses manufacturing or mineral content.
Is E629 safe?
There is no meaningful personal risk estimate from an E number alone. Food-grade specifications, allowed uses, amount consumed, and individual circumstances all matter. The authorization record below gives the legal scope; it is not a claim that every possible use is appropriate.
A label identifies the ingredient but usually not its concentration. Calculating daily intake requires the amount in the food and the quantities eaten.
Authorization and conditions of use
The Great Britain food additive register lists E629 as Calcium guanylate. This is an entry subject to its stated conditions, not unrestricted permission for every food. The record links to the applicable authorization terms. For an EU product, use the European Commission food additive database to check the relevant food category and limits. Other countries may use different names or rules.