Ingredient · E339(iii)

Trisodium Phosphate

Source
Not animal-derived
Allergen
No
Role in food
TSP is used in food as an acidity regulator, emulsifier, and to improve texture. …

What is Trisodium Phosphate?

Trisodium phosphate (TSP) is a cleaning agent and food additive. It is a sodium salt of phosphoric acid, typically made from reacting phosphoric acid with sodium carbonate or sodium hydroxide.

Is Trisodium Phosphate vegan?

Trisodium Phosphate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Trisodium Phosphate gluten-free?

It does not contain gluten.

Is Trisodium Phosphate a major allergen?

Trisodium phosphate is not derived from any of the 9 major allergens.

What is Trisodium Phosphate used for?

TSP is used in food as an acidity regulator, emulsifier, and to improve texture.

Is Trisodium Phosphate safe?

In the US, trisodium phosphate is generally recognized as safe (GRAS) by the FDA when used as a food additive.

Why it's used

TSP is used in food as an acidity regulator, emulsifier, and to improve texture. It helps prevent caking and can enhance the leavening action of baking powder. It is found in baked goods, cereals, and processed cheeses.

Health notes

In the US, trisodium phosphate is generally recognized as safe (GRAS) by the FDA when used as a food additive. It has been evaluated by JECFA, which did not set a numeric acceptable daily intake. High intake of phosphates can affect calcium balance in the body, but this is generally not a concern with typical food additive levels.

Allergen info

Trisodium phosphate is not derived from any of the 9 major allergens. It does not contain gluten.

Foods that contain Trisodium Phosphate

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.