Ferrous gluconate is a yellowish-gray to pale greenish-yellow powder that provides a highly bioavailable form of iron for food fortification. It is one of the preferred iron sources in the food industry due to its relatively mild taste and good absorption profile. The compound is widely used to fortify cereals, infant formulas, and nutritional supplements.
Ferrous gluconate also serves as an approved coloring agent for ripe olives. This gives them their characteristic black color. Its gentle gastrointestinal profile makes it suitable for a broad range of nutritional applications.