Initially, ferrous sulfate provides 80 mg of elemental iron, while ferrous bisglycinate chelate serves as an alternative source of iron. Additionally, ferrous fumarate, sourced naturally, is available in tablets containing 322 mg of ferrous fumarate and folic acid, particularly beneficial during pregnancy. It is also important to consider the role of WLS calcium citrate, which can enhance iron absorption. The combination of ferrous fumarate and WLS calcium citrate can support overall health during pregnancy. To maximize the benefits of iron supplementation, including ferrous fumarate and WLS calcium citrate in your regimen can be advantageous.