New iron preparations comprising stable, unpolymerized iron(III) citrate complex compositions and methods for their preparation are provided. Further, the invention involves the use stable, unpolymerized iron(III) citrate complex compositions of the invention as a food additive, nutritional supplement, dietary supplement, medical food, nutrient, iron fortificant, and source of iron in the fields of nutrition for humans, animals, fish, and birds and of diagnostics. The invention further involves the use of stable, unpolymerized iron(III) citrate complex compositions of the invention as a pharmaceutical and pharmacologically active ingredient for human clinical and veterinary applications.
