Food additive databaseprocessing agent, nutrient (fortification)Checked 2026-10-02
Calcium Dihydrogen Phosphate (Calcium Phosphate, Monobasic) リン酸二水素カルシウム（別名第一リン酸カルシウム）
Designated additivePermitted in the EU (E341(i))EFSA ADI 40mg per kg body weight per day
- Purpose
- processing agent, nutrient (fortification)
- On the label
- “リン酸Ca” (calcium phosphate), “リン酸カルシウム” (calcium phosphate), “リン酸塩（Ca）” (phosphates (Ca)), “イーストフード” (yeast food), “膨張剤” (leavening agent)
- Name in the List of Designated Additives
- リン酸二水素カルシウム（別名第一リン酸カルシウム） (No. 471)
In Japan
- One of the calcium salts of phosphoric acid (also known as “第一リン酸カルシウム”, monobasic calcium phosphate). Under the Food Labeling Standards, it is among the additives that can be labeled with the respective group name when used as yeast food, a leavening agent, or an emulsifier in processed cheese products.
- When used for nutrient fortification, it falls within the range for which additive labeling can be omitted under the Food Labeling Standards (Attachment, Additives 1-5).
- When written by substance name, the simplified names “リン酸カルシウム” and “リン酸Ca” can be used, but these simplified names are shared with other calcium salts such as tricalcium phosphate.
Japan's standards for use
- Up to 1.0% of the food as calcium (excluding foods with special dietary use labeling)
- Only when essential for the manufacture or processing of food, and for nutritional purposes
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 E341(i).
- The EFSA group ADI for phosphates (40 mg per kg of body weight per day) is expressed as the amount converted to phosphorus.
- In its 2019 evaluation, EFSA (the European Food Safety Authority) set an ADI (acceptable daily intake) of 40mg per kg of body weight per day (a group ADI, for the total of related substances) (EFSA FAF).
When it is labeled under a shared name
Calcium Dihydrogen Phosphate (Calcium Phosphate, Monobasic) may be declared on the label in the same way as “リン酸塩”. See Phosphates for details.
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
- EFSA OpenFoodTox (chemical hazards database)
- 消費者庁「食品表示基準について」別添 添加物関係（簡略名・類別名一覧、用途名併記の例示、一括名の範囲、栄養強化の範囲ほか） (Japanese)
- 消費者庁「食品表示基準について」本体（添加物の表示） (Japanese)
- EFSA FAF Panel (2019) Re-evaluation of phosphoric acid–phosphates – di-, tri- and polyphosphates (E 338–341, E 343, E 450–452) as food additives (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.