F
Forkin
E451IUnder monitoring

Pentasodium triphosphate

Function: Emulsifier

E451I is the European food-additive number for Pentasodium triphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Pentasodium triphosphate (E451i) is an emulsifier used as a food additive.

What is E451I used for?

Pentasodium triphosphate (E451I) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. It is added during food production for a technological purpose rather than for nutrition.

Is E451I safe or restricted?

E451I is approved for use in the EU. It sits among the additives EFSA keeps under ongoing review as new evidence is published. Forkin classifies it as Under monitoring and does not make health claims. See the methodology for how regulatory levels are assigned.

Frequently asked questions about E451I

What is E451I?
E451I is the E-number for Pentasodium triphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Pentasodium triphosphate (E451i) is an emulsifier used as a food additive.
What is E451I used for?
Pentasodium triphosphate (E451I) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Manufacturers add it during processing rather than for nutrition. The Forkin app shows which products in your scan history actually contain it.
Is E451I vegan or vegetarian?
It depends on the source. Many additives can be produced from plant, mineral, or animal-derived raw materials, and the ingredient list rarely states which was used. The Forkin app shows the verified vegan and vegetarian status per product where it's known, instead of a blanket guess.
Is E451I safe, and is it banned anywhere?
E451I is approved for use in the EU. It sits among the additives EFSA keeps under ongoing review as new evidence is published. Forkin classifies it as "Under monitoring" and does not make health claims — see the methodology page for how regulatory levels are assigned, and the Forkin app for the full profile, including acceptable daily intake (ADI) and restrictions by country.

See the full profile in Forkin

The Forkin app surfaces the full regulatory profile of E451I — acceptable daily intake (ADI), restrictions by country, vegan/vegetarian status, alternative names, and which products in your scan history contain it.

Related additives (Emulsifier)

Regulatory-level classification based on EFSA evaluations, IARC monograph groupings, and the EU food additive register (Regulation (EC) No 1333/2008). Informational only — not medical or dietary advice. See methodology for the rubric.