Food additive databasenutrient (fortification), processing agentChecked 2026-10-02
Calcium Oxide 酸化カルシウム
Designated additivePermitted in the EU (E529)
- Purpose
- nutrient (fortification), processing agent
- On the label
- “酸化カルシウム” (calcium oxide), “酸化Ca” (Ca oxide), “イーストフード” (yeast food; when used for the yeast food purpose), “酸化物（Ca，Mg）” (oxides (Ca, Mg); when used together with magnesium oxide)
- Name in the List of Designated Additives
- 酸化カルシウム (No. 173)
In Japan
- A calcium compound listed among additives that may be used for nutrient fortification (minerals); labeling can be omitted when it is used for nutrient fortification (except in foods for special dietary uses and foods with function claims).
- The simplified name is “酸化Ca” (Ca oxide). It also falls within the group name range for yeast food (“イーストフード”) (appendix to the CAA’s “Food Labeling Standards” guidance).
- The list of standards for use (as amended on April 7, 2026 (Reiwa 8)) contains no individual standards for it.
Japan's standards for use
There are no standards for use that limit which foods or how much (the general standards for all additives still apply).
This is a summary of the standards for use. See the source list for the exact conditions.
In the EU
- It is on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II) as E529.
Sources
- List of Designated Additives — Japan Food Chemical Research Foundation (Japanese)
- Standards for use and storage of each additive — Japan Food Chemical Research Foundation (Japanese)
- EU food additive database (Japanese translation) — MAFF (Japanese)
- Regulation (EC) No 1333/2008 on food additives — EUR-Lex
- 消費者庁「食品表示基準について」別添 添加物関係（簡略名・用途名併記・一括名・栄養強化の範囲） (Japanese)
Checked 2026-10-02. Rules and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.
This page lists facts stated in laws and in evaluations by public bodies; it is not a safety verdict. Additives used in Japan are approved by the government, which sets the foods and amounts they can be used in. The ADI is a guide to the amount that is considered safe to take every day over a lifetime.