E957Thaumatin

E957 is thaumatin (INS 957). In Circular 24/2019/TT-BYT it is listed in Appendix 1 with the functions: sweetener, flavour enhancer.

Did you know? Thaumatin is a plant protein obtained by acidic water extraction from the arils of the fruit of Thaumatococcus daniellii, a West African plant.

Code: E957 · INS 957
Group: Sweetener, Flavour enhancer

In Vietnam✓ PermittedOn the list of permitted additives — Circular 24/2019, Appendix 1

Risk level on the Yenzo Scalevery low?Based on the Open Food Facts additives taxonomy

How E957 appears on labels

IngredientsIllustrative example

Wheat flour, vegetable oil, salt, sugar, sweetener (957), dried onion and garlic, pepper, natural colour (160a).

sweetener (957)sweetener 957E957INS 957On Vietnamese labels: Thaumatin

Thaumatin in food

Chewable and syrup food supplements

Flavoured drinks

Table-top sweeteners

Flavoured fermented milk Other confectionery

Questions about thaumatin

What is E957 (thaumatin)?

E957 is thaumatin. In Appendix 1 of Circular 24/2019/TT-BYT the functions listed for it are sweetener, flavour enhancer.

Is thaumatin harmful?

In 2021 EFSA concluded that there is no need for a numerical ADI for thaumatin (E 957) and no safety concern at the regulatory maximum level exposure scenario, with a margin of safety (MOS) of 5,417 based on the highest 95th percentile exposure of 0.48 mg/kg body weight per day.

Is E957 permitted in Vietnam?

Yes. Thaumatin (INS 957) is listed in Appendix 1 of Circular 24/2019/TT-BYT, the list of additives permitted in food.

Other sweeteners

E953Isomaltvery low E954Saccharinlow E955Sucraloselow E959Neohesperidine dihydrochalconevery low E960Steviol glycosidesvery low E961Neotamelow

See all sweeteners →

Updated 23 October 2026

How Yenzo scores

Sources (3)

Open Food Facts additives taxonomy (Yenzo's table cites no EFSA opinion for this code). Open Food Facts additives taxonomy, https://github.com/openfoodfacts/openfoodfacts-server/blob/main/taxonomies/additives.txt (entry en:e957)
Thông tư 24/2019/TT-BYT (văn bản hợp nhất 09/VBHN-BYT), Phụ lục 1
EFSA Journal (2021). Re-evaluation of thaumatin (E 957) as food additive: nhóm thực phẩm đóng góp chính vào lượng ăn vào

Information only, not medical advice. The risk level is the additive's class in Yenzo's open scoring method, based on the cited source.