E957Sweetener
Thaumatin
A sweetener from a West African fruit.
It sweetens food and changes flavour, though its sweetness builds slowly.
Written from English Wikipedia1
- Vegan
- Vegetarian
- EU permitted
What research says
Study type not stated
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Open question
Allergic reactions to food additives2
Scientists do not yet know whether thaumatin can cause allergic reactions in people who eat it.
The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.
Regulatory status
Checked Sep 2026-
European Union Permitted EUR-Lex Reg. (EC) 1333/2008
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United Kingdom Permitted FSA retained EU law
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Canada Permitted Health Canada · Sweeteners
Status reflects the named register on the date checked. It is not a safety rating. A country appears here once we've found this ingredient on its official list.
How we checkProducts
The 6 most-scanned of 33 products on Open Food Facts that list thaumatin.
- PERFORMANCE PROTEIN form · 520 g 6 additives
- Performance Protein form · 520 g 6 additives
- Shreddies Honey Post · 440 g 2 additives
- Chocolate Hazelnut Performance Protein Form · 520 g 6 additives
- Red Bull Zero Red Bull · 250 ml 11 additives
- Whey Protein Naturaltein · 1 kg 7 additives
References
- 1Thaumatin. Wikipedia. Accessed September 26, 2026.
- 2Younes M, Aquilina G, Castle L, et al. Re-evaluation of thaumatin (E 957) as food additive. EFSA J. 2021;19(11):e06884. doi:10.2903/j.efsa.2021.6884