Watch
E317 — Potassium erythorbate
Antioxidant
E317 (Potassium erythorbate), a antioxidant, is rated "watch": fine in moderation. A stereoisomer of vitamin C used to stop discolouration in cured meats. No serious safety concerns; Yuka moved the erythorbate family from green to yellow in 05/2026.
Why it's rated “watch”
A stereoisomer of vitamin C used to stop discolouration in cured meats. No serious safety concerns; Yuka moved the erythorbate family from green to yellow in 05/2026.
Risk rating: Watch
Mixed evidence or a specific concern (gut, allergy, or contested safety data). Not alarming, but worth keeping an eye on rather than eating without limit.
Frequently asked questions
Is E317 (Potassium erythorbate) safe?
A stereoisomer of vitamin C used to stop discolouration in cured meats. No serious safety concerns; Yuka moved the erythorbate family from green to yellow in 05/2026.
What are other names for E317?
E317 is also known as potassium erythorbate.