Last reviewed May 2026 · 1 min read

Is Guanylic Acid vegan?

Also known as: E626

E-number: E626

Check the Label

Source can be plant or animal.

In short

It depends — Can be produced from plant starch fermentation or fish extract.

01 · The basics

What is Guanylic Acid?

A flavor enhancer used synergistically with MSG.

02 · The source

Can be produced from plant starch fermentation or fish extract. Verification needed.

Frequently asked

Is E626 vegan?

Verification is needed (often from fish).

Commonly found in

Instant noodlesGravy

A thick liquid or powder made from the contents of yeast cells, used as a flavor enhancer.

An amino acid used as a flavor enhancer to provide an umami taste.

The potassium salt of glutamic acid, used as a lower-sodium alternative to MSG.

Keep exploring

A sweet, syrupy liquid used as a humectant in foods and cosmetics.

A dough conditioner used in commercial bread baking.

A common mineral used as a white food coloring, an anti-caking agent, and a calcium supplement.

What's next