Is Ferrous Gluconate (E579) Halal?

MUIS lists E579 (Ferrous Gluconate) as halal. It is manufactured synthetically from non-animal raw materials. The status applies to the additive itself; the finished product still needs its other ingredients checked.

Ferrous gluconate is an iron salt of gluconic acid, used as a colour fixative for black olives and as an iron-fortification compound. It darkens olives by complexing with their natural pigments.

• black olives (colour fixative)
• iron-fortified foods
• iron supplements

• E579 on its own is not a reason to avoid a product.
• The finished product still needs its other ingredients checked — look for a halal certification logo (MUIS, JAKIM, MUI, HMC or similar) when in doubt.
• Halal status here follows the MUIS food additive listing; rulings can differ between certification bodies.

iron sulphate, ammonium ferric citrate (E381), ferrous lactate

E579 (Ferrous Gluconate) is halal for Muslims according to the MUIS food additive listing. Ferrous gluconate is an iron salt of gluconic acid, used as a colour fixative for black olives and as an iron-fortification compound.

Ferrous gluconate is an iron salt of gluconic acid, used as a colour fixative for black olives and as an iron-fortification compound. It darkens olives by complexing with their natural pigments.

E579 is commonly found in black olives (colour fixative), iron-fortified foods, and iron supplements.