Calcium oxide
Function: Food Additive
E529 is the European food-additive number for Calcium oxide. Calcium oxide (E529) is a food additive used as a food additive.
Is E529 safe or restricted?
E529 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as “No regulatory flags” and does not make health claims. See the methodology for how regulatory levels are assigned, or the guide to how EU additives are approved, re-evaluated and banned.
Is E529 vegan or vegetarian?
Calcium oxide (E529) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians.
The production source can vary between manufacturers — the Forkin app shows the verified vegan and vegetarian status per product. Always read the label for allergens.
Which foods contain E529?
E529 appears in 63 of the 4.7 million products in Forkin's catalogue — most often in papadum, ice cream and prepared rice & grain meals.
- Papadum16
- Ice Cream3
- Prepared Rice & Grain Meals3
- Naan / Flatbread2
- Crackers2
- Chickpea Flour (Besan)2
- Vegetable Chips1
- Corn Snacks1
Often appears alongside
Additives most frequently found in the same ingredient lists as E529 across the catalogue.
Counts reflect Forkin's independently enriched product catalogue and update as new products are added — they are not a market-share statistic.
Frequently asked questions about E529
- What is E529?
- E529 is the E-number for Calcium oxide. Calcium oxide (E529) is a food additive used as a food additive.
- Which foods contain E529?
- E529 appears in 63 of the 4.7 million products in Forkin's catalogue — most often in papadum, ice cream and prepared rice & grain meals. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
- Is E529 vegan or vegetarian?
- Calcium oxide (E529) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians. The Forkin app shows the verified vegan and vegetarian status per product, since the source can vary between manufacturers.
- Is E529 safe, and is it banned anywhere?
- E529 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as "No regulatory flags" and does not make health claims — see the methodology page for how regulatory levels are assigned, and the Forkin app for the full profile, including acceptable daily intake (ADI) and restrictions by country.
See the full profile in Forkin
The Forkin app surfaces the full regulatory profile of E529 — acceptable daily intake (ADI), restrictions by country, vegan/vegetarian status, alternative names, and which products in your scan history contain it. See view pricing.