Feris ferrous fumarate is comparable to ferrous gluconate, which contains 28 mg of iron. Additionally, iron supplements such as ferrous sulfate and bisglycinate, with a dosage of 325 mg, are also widely used. Furthermore, dissolvable calcium citrate is an excellent option for those seeking to enhance their mineral intake. Incorporating dissolvable calcium citrate into your diet can provide essential nutrients, and it is beneficial to consider this alongside ferrous fumarate and other iron formulations. Overall, making informed choices about supplements, including the use of dissolvable calcium citrate, can support optimal health and well-being.