Thaumatin

SweetenersCAS: 53850-34-3

This is what the ingredient is.

Thaumatin is a natural protein sweetener extracted from the katemfe fruit of West Africa, approximately 2000-3000 times sweeter than sucrose.

Here is why it shows up on the label.

Used as an intense sweetener and flavor modifier. Enhances fruit flavors and masks bitter tastes in beverages, dairy, and confections.

Here is what food agencies say.

The FDA lists it as Generally Recognized as Safe. European food agencies allow it, with ADI not specified. Approved in US, EU, Japan, and internationally.

Here is what research has found.

an FAO/WHO expert committee confirms safety. Being a protein, it is digested like other dietary proteins. No adverse effects reported.

Here are a few things worth knowing.

Generally recognized as safe. As a protein, potential for allergic reactions exists but is rare.

Sources

  • FDA GRAS Notice
  • EFSA Panel on Food Additives
  • JECFA

How to read this page

We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.

v1.0Updated 9/12/2026