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Potassium Ascorbate
Potassium Ascorbate
Also known as: E303, potassium-L-ascorbate
Low concern
Potassium ascorbate is a salt of vitamin C and considered safe by EFSA and FDA. It functions as an antioxidant and is generally well-tolerated.
Found in
4 products
E-number
E303
What it is
Potassium ascorbate, the potassium salt of vitamin C used as an antioxidant.
Antioxidant; vitamin C source; preserves color and prevents oxidation.
Why it's flagged
- potassium intake consideration for those with kidney disease
What regulators actually say
"Ascorbic acid... is generally recognized as safe when used in accordance with good manufacturing practice."
Regulatory status
United States — FDA
GRAS as ascorbic acid/ascorbates
European Union — EFSA
Authorized food additive (E303), no ADI specified
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