A fine yellowish-Gray or pale greenish-yellow powder or granular with a slight odour resembling that of burnt sugar. Soluble with slight heating in water, practically insoluble in ethanol. Ferrous gluconate is often used as an iron source for food fortification and in the treatment of anemia (blood is shorts of healthy red blood cells caused by insufficient iron) in medical uses.

Food

The uses of ferrous gluconate in food including as a nutrient supplement, such as in vitamins and minerals supplement, also in infant formula. It also can be used as a food coloring, making ripe olives black. 

Pharmaceutical

Ferrous gluconate is used for treating or preventing iron deficiency anemia. Besides its pure form (powder or granular) sold as a bulk ingredient in the market, you can commonly find the tablet formulation of ferrous gluconate as an iron supplement with various dosages available in B2C market, for example, 324 mg, 325 mg, 300mg, 240 mg, 225 mg and so on.