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  2. Acidity Regulators & Anti-caking Agents

E535 Sodium ferrocyanide

What is Sodium ferrocyanide (E535)?

E535, or sodium ferrocyanide, is an anti-caking agent commonly used in table salt and other salt-based products. It helps prevent the formation of lumps, ensuring a free-flowing texture in salt and certain processed foods.


Why do I have an intolerance?

Sodium ferrocyanide intolerance may result from your body’s inability to effectively metabolize this additive, or you may have a sensitivity to the cyanide component, despite its very low toxicity levels in food. Symptoms of intolerance can include headaches, nausea, and digestive issues after consuming products that contain this compound.


What can I do about it?

If you suspect an intolerance to sodium ferrocyanide, consider switching to salt brands that do not contain anti-caking agents. Sea salt, kosher salt, or other natural salts may offer a suitable alternative. Cooking from scratch with fresh ingredients and avoiding heavily processed foods will also help you reduce your intake of E535.