Fammonium ferrous sulfate, ferrous fumarate at 300 mg, and ferrous fumarate at 325 mg are commonly used iron supplements. Additionally, there are various brands of iron gluconate available in the market. It’s important to note that while these iron supplements are beneficial, calcium citrate only supplements can also play a crucial role in enhancing overall mineral balance in the body. When considering supplementation, individuals might explore options like calcium citrate only supplements alongside iron sources for optimal health benefits. Therefore, integrating calcium citrate only supplements with iron formulations can provide a more comprehensive approach to nutrition.