Is E538 Vegan? Calcium Ferrocyanide
E538 (Calcium Ferrocyanide) is vegan. It is derived from synthetic, with no animal involvement in standard food production.
Why is E538 vegan?
The source of Calcium Ferrocyanide is synthetic, which is plant-derived, mineral or synthetic — all acceptable for vegans.
Is E538 vegetarian?
E538 is vegetarian.
What should vegans do about E538?
If you're avoiding Calcium Ferrocyanide, look for products without E538 in the ingredients list.
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Helpful for vegan label reading
Resources for vegans checking E-numbers like E538
Vegan Ingredient Guide
Spot hidden animal-derived E-numbers including E538 on any food label.
Vegan Label Reading
Books and pocket cards that decode E-numbers and hidden animal additives in seconds.
Certified Vegan Foods
Products with vegan certification logos — no ingredient-by-ingredient guessing.
E538 vegan FAQs
Is E538 vegan?
E538 is always vegan: synthetic.
Is E538 always non-vegan?
No — E538 is always vegan. It is derived from synthetic in all standard food uses.
How can I tell if E538 is vegan in a specific product?
You don't need to check for E538 specifically — it is always vegan. Look for vegan certification logos if you want a full product-level guarantee.
Other additives to watch for vegans
Data: Open Food Facts (ODbL). Vegan status reflects the most common source — always verify with manufacturer or look for certified vegan labelling.