Potassium iodate
Iodine fortificant; not authorised as a flour treatment in the EU.
- Category
- Flour treatment agents
- Vegan
- Yes
- Vegetarian
- Yes
What it is
A potassium salt of iodic acid used to fortify foods with iodine.
How it is used in food
A highly stable source of iodine used to prevent global iodine deficiency.
Commonly found in- Iodised table salt
Health and safety
Generally safe. Provides essential dietary iodine. Excessive consumption of iodine over time can affect thyroid function, but typical fortified foods are perfectly safe.
Evaluated by food safety authorities and determined to be unsafe for general food use.
Regulatory status
| Region | Status | Notes |
|---|---|---|
| Australia & New Zealand FSANZ |
Permitted | Permitted under the FSANZ Food Standards Code. |
| European Union EFSA / European Commission |
Not approved | Not on the EU authorised list of food additives (Annex II). |
| United States FDA (Food and Drug Administration) |
Permitted | Authorised for food use by the FDA (often GRAS for standard additives). |
Identification on labels
- E-number
- E917
Worth knowing
Potassium iodate is often preferred over potassium iodide in humid climates because it does not degrade as quickly in table salt.
Conclusion
An unauthorized dough conditioner.
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Open the appEntry last reviewed 2026-07-28.
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