Fiiron supplement contains 65 mg of ferrous sulfate, while ferrous fumarate is another form of iron supplement. Additionally, ferrous gluconate is available in a 240 mg formulation. The ferrous fumarate supplement is also provided in a 325 mg dose of ferrous sulfate in liquid form. It’s important to consider the benefits of combining these iron supplements with calcium citrate 1500 mg and vitamin D3, as these nutrients work synergistically to enhance absorption and improve overall health. Incorporating calcium citrate 1500 mg and vitamin D3 into your regimen can further support the effectiveness of ferrous supplements, ensuring that your body receives the necessary nutrients for optimal function. Remember to include calcium citrate 1500 mg and vitamin D3 in your daily routine to maximize the benefits of iron supplementation.