Last reviewed May 2026 · 1 min read
Is Ascorbic Acid vegan?
Also known as: Vitamin C, E300, L-ascorbic acid
E-number: E300
Vegan
Suitable for a vegan diet.
Yes — It is produced industrially by fermenting glucose (usually derived from corn), making it completely plant-based and vegan.
01 · The basics
What is Ascorbic Acid?
A synthesized version of Vitamin C used as a dietary supplement, preservative, and dough conditioner.
02 · The source
Where it comes from
It is produced industrially by fermenting glucose (usually derived from corn), making it completely plant-based and vegan.
03 · Alternatives
Best vegan alternatives
Citric acid
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Frequently asked
FAQ
Is all Vitamin C vegan?
Yes, essentially all commercially produced Vitamin C (ascorbic acid) is made from plant starches and is vegan.
Why is ascorbic acid added to bread?
It acts as a dough conditioner, helping the yeast work faster and making the bread rise higher with a finer crumb.
Commonly found in
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