Last reviewed May 2026 · 1 min read

Is Erythorbic Acid vegan?

Also known as: Isoascorbic acid

E-number: E315

Vegan

Suitable for a vegan diet.

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In short

Yes — Produced via plant sugar fermentation.

01 · The basics

What is Erythorbic Acid?

A stereoisomer of ascorbic acid (Vitamin C) used as a food preservative and antioxidant.

02 · The source

Where it comes from

Produced via plant sugar fermentation. It is 100% vegan.

03 · Alternatives

Best vegan alternatives

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Frequently asked

FAQ

Is E315 vegan?

Yes, it is derived from plant sugars.

Commonly found in

Cured meatsSoft drinksCanned fruits
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