Taking ferrous gluconate on an empty stomach can enhance its absorption. Ferrous fumarate, along with vitamin B12 and folic acid tablets, is another iron supplement option. Ferrous sulfate is commonly used as an iron supplement, particularly during pregnancy. It’s important to consider the role of calcium citrate and electrolytes when taking these supplements, as they can affect iron absorption. For optimal results, combining ferrous fumarate with calcium citrate and electrolytes may be beneficial. Remember to consult with a healthcare professional to ensure that your iron supplements, including ferrous sulfate, are taken correctly, especially during pregnancy.