Calcium citrates
Function: Acidity Regulator
E333 is the European food-additive number for Calcium citrates, an acidity regulator — used to control and stabilise the pH of a food. Calcium citrates (E333) is a sequestrant used as a food additive.
What is E333 used for?
Calcium citrates (E333) is an acidity regulator — used to control and stabilise the pH of a food. It is added during food production for a technological purpose rather than for nutrition. See all acidity regulators (E-numbers).
Is E333 safe or restricted?
E333 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 E333 vegan or vegetarian?
Calcium citrates (E333) 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 E333?
E333 appears in 2,222 of the 4.7 million products in Forkin's catalogue — most often in flavored yogurt, jam / marmalade and plain yogurt.
- Flavored Yogurt223
- Jam / Marmalade113
- Plain Yogurt95
- Drinking Yogurt / Kefir74
- Dietary Supplements73
- Cakes72
- Baby Formula (Powder)71
- Protein Powder / Shake67
Often appears alongside
Additives most frequently found in the same ingredient lists as E333 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 E333
- What is E333?
- E333 is the E-number for Calcium citrates, an acidity regulator — used to control and stabilise the pH of a food. Calcium citrates (E333) is a sequestrant used as a food additive.
- What is E333 used for?
- Calcium citrates (E333) is an acidity regulator — used to control and stabilise the pH of a food. Manufacturers add it during processing rather than for nutrition. The Forkin app shows which products in your scan history actually contain it.
- Which foods contain E333?
- E333 appears in 2,222 of the 4.7 million products in Forkin's catalogue — most often in flavored yogurt, jam / marmalade and plain yogurt. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
- Is E333 vegan or vegetarian?
- Calcium citrates (E333) 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 E333 safe, and is it banned anywhere?
- E333 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 E333 — acceptable daily intake (ADI), restrictions by country, vegan/vegetarian status, alternative names, and which products in your scan history contain it. See view pricing.