{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/ferrous-gluconate",
  "slug": "ferrous-gluconate",
  "name": "Ferrous gluconate",
  "identifiers": {
    "e_number": null,
    "ins_number": "579",
    "cas_number": "6047-12-7",
    "inchikey": "OKGNXSFAYMSVNN-SYAJEJNSSA-L",
    "pubchem_cid": 198008
  },
  "functional_class": "Colour retention agent",
  "summary": "Ferrous gluconate is an iron fortificant and also the additive that darkens ripe olives to a uniform black. It is one of the few additives whose colour use is better known than its nutritional one.",
  "derivation_summary": "Made by reacting an iron salt with fermentation-derived gluconic acid.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted",
      "status_label": "Permitted",
      "provision_count": 2,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 184.1308",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1308"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        },
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 73.160",
            "url": "https://www.ecfr.gov/current/title-21/section-73.160"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "04.2.2.3",
            "name": "Vegetables (including mushrooms and fungi, roots and tubers, pulses and legumes, and aloe vera), and seaweeds in vinegar, oil, brine, or soybean sauce"
          },
          "max_level": 150,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 23, 48 & 265",
          "effective_from": "2024",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 579, food category 04.2.2.3",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "22830-45-1",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "6047-12-7",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "Apo-Ferrous Gluconate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 7332",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "D-Gluconic acid, iron(2+) salt, dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "D-GLUCONIC ACID, IRON(2+) SALT, HYDRATE (2:1:2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "D-GLUCONIC ACID, IRON(II) SALT (2:1), DIHYDRATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "D-Gluconic acid, iron(II) salt, dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Enterued (TN)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ferrous gluconate (USP)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ferrous gluconate [USP]",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ferrous gluconate dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Gluconic acid, iron(2+) salt, dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "GLUCONIC ACID, IRON(2+) SALT, DIHYDRATE, D-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Gluconic acid, iron(II) salt, hydrate (2:1:2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "IRON (AS FERROUS GLUCONATE) [VANDF]",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "IRON (II) DI-D-GLUCONATE DEHYDRATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iron(2+) D-gluconate--water (1/2/2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "iron(2+);(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoate;dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iron(II) D-gluconate dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "IRON(II) GLUCONATE (1:2) DIHYDRATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iron(II) gluconate dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "IRON, BIS(D-GLUCONATO-.KAPPA.O1,.KAPPA.O2)-, HYDRATE (1:2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Iron, bis(D-gluconato-O1,O2)-, dihydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "OKGNXSFAYMSVNN-SYAJEJNSSA-L",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "579",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "Ferrous gluconate",
      "type": "label",
      "source": "ecfr"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "key": "ecfr",
      "name": "Electronic Code of Federal Regulations, Title 21",
      "publisher": "U.S. Government Publishing Office / National Archives",
      "licence": "Public domain",
      "url": "https://www.ecfr.gov/api/versioner/v1/full/2026-08-31/title-21.xml",
      "retrieved_at": "2026-09-07T18:25:51.549Z"
    },
    {
      "key": "gsfa",
      "name": "Codex General Standard for Food Additives (CXS 192-1995)",
      "publisher": "Codex Alimentarius Commission (FAO/WHO)",
      "licence": "FAO terms — non-commercial use with attribution",
      "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/",
      "retrieved_at": "2026-09-07T07:54:15.059Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Ferrous gluconate\", https://foodadditiveindex.com/additives/ferrous-gluconate. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.538Z"
}