Calcium oxide
Learn what Calcium oxide (E529) is, why it's added to food, whether it's safe, and which products contain it.
Generally recognized as safeWhat is Calcium oxide?
Food additive with the role of acidity regulator. It is used in the quantities specified in recipes in dairy products, cheeses, puddings, condensed or powdered milk, butter, whey powder, spreads, various emulsions, sweet creams, ice cream, processed and preserved fruits, vegetable products, meat, fish, eggs, soups, broths, sauces, salads, bakery products, pastry, confectionery, pre-cooked rice and pasta, spices, dietary supplements, alcoholic and non-alcoholic beverages, etc. It is also used in the treatment of flour.
Why is Calcium oxide added to food?
Calcium oxide (E529) is a acidity regulator commonly found in: Puddings, Condensed Milk, Butter.
Permitted quantity: No daily intake limit.
Is Calcium oxide safe?
Generally recognized as safe
No secondary effects have been reported at the quantities used in foods.
Is Calcium oxide banned anywhere?
✓ Not currently banned in the EU or known to be restricted in other countries.
Is Calcium oxide okay for kids?
Not allowed in food intended for infants and young children.
Common foods that contain Calcium oxide
- Puddings
- Condensed Milk
- Butter
How to spot Calcium oxide on labels
Look for any of these names in the ingredients list:
- E529
- Calcium oxide
Common misspellings to watch for:
- calclum oxide
- calcium oxide
- cdlcium oxide
- calcium oxlde
- caleium oxide
- ealcium oxide
Better alternatives
• Cardiovascular conditions: Excess calcium in the body, such as that from calcium oxide, can affect heart rhythm and contribute to kidney stone formation or the calcification of blood vessels, especially in individuals with pre-existing cardiovascular conditions.
Also known as
- calclum oxide
- calcium oxide
- cdlcium oxide
- calcium oxlde
- caleium oxide
- ealcium oxide
Scan products with BioBrief
Not sure if a product contains Calcium oxide? BioBrief scans the barcode and instantly shows you every additive in the ingredients list — including E529 — with a plain-language explanation.
Frequently asked questions about Calcium oxide
- Is Calcium oxide safe to eat?
- No secondary effects have been reported at the quantities used in foods.
- Is Calcium oxide banned anywhere?
- Calcium oxide is not currently banned in the EU or known to be restricted in other countries.
- Is Calcium oxide safe for children?
- Not allowed in food intended for infants and young children.
- How do I spot Calcium oxide on a food label?
- Look for E529, Calcium oxide in the ingredients list. It may also appear as: calclum oxide, calcium oxide, cdlcium oxide.
Ingredients change. Always check the actual product label before purchasing. Information on this page is for educational purposes only.