Stabilisers · E500–E599
E579, also known as Ferrous gluconate, is a stabilisers food additive. Iron supplement and colour stabiliser in olives. Skaren rates it “safe”. It is suitable for vegans.
What is E579?
Iron(II) gluconate, or ferrous gluconate, is a black compound often used as an iron supplement. It is the iron(II) salt of gluconic acid with the chemical formula Fe(C6H11O7)2⋅nH2O (n=0,2). E579 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.
What is E579 used for?
E579 belongs to the stabilisers group. Stabilisers keep mixtures even and stop ingredients separating. Most are safe.
Is E579 safe?
E579 is considered safe at the levels used in food and is approved for use in the EU. “Safe” means it is approved in the EU and regarded as safe at the levels used in food.
How E579 appears on labels
On food packaging you'll find E579 either as the number “E579” or by the name “Ferrous gluconate” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.
Is E579 vegan?
Yes, E579 is suitable for vegans.
This information is for guidance only and is not medical advice.
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