日本語
Food additive databasenutrient (fortification)Checked 2026-10-02

Non-calcinated calcium 未焼成カルシウム

Existing food additiveNot on the EU additive list
Purpose
nutrient (fortification)
On the label
“未焼成カルシウム” (non-calcinated calcium), “未焼成Ca” (non-calcinated Ca), “貝殻未焼成カルシウム” (non-calcinated shell calcium), “貝カルシウム” (shell calcium), “骨カルシウム” (bone calcium), “卵殻カルシウム” (eggshell calcium), “サンゴカルシウム” (coral calcium), “真珠層カルシウム” (nacre calcium)
Name in the List of Existing Food Additives
未焼成カルシウム (No. 284)
Source and production
Obtained by sterilizing, drying, and powdering shells, the nacre of pearls, reef-building coral, bone (animal or fish bone), or eggshell. The main component is calcium phosphate for the bone-derived type and calcium carbonate for the others.

In Japan

  • Its purpose in the List of Existing Food Additives is nutrient fortifier. It is divided by source into non-calcinated calcium from shell, bone, coral, nacre, and eggshell, each with short names such as “貝カルシウム” (shell calcium), “骨Ca” (bone Ca), and “卵殻カルシウム” (eggshell calcium).
  • Names such as “貝カルシウム” (shell calcium), “骨カルシウム” (bone calcium), “卵殻カルシウム” (eggshell calcium), and “サンゴカルシウム” (coral calcium) also exist for “焼成カルシウム” (calcinated calcium), which is made by heating, so this wording alone does not tell you whether it is calcinated or non-calcinated.
  • When used as a nutrient fortifier for the purpose of fortifying nutrition, labeling is in principle exempt. There are no standards for use.

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 not on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II), so it cannot be used as a food additive in the EU.
  • The EU additive list has calcium carbonate (E170), but its specification describes it as crushed limestone or a precipitated product, and it does not list shell, bone, eggshell, or similar material that has been dried and powdered.

Sources

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.

Other substances used as nutrient (fortification)

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