The first product is ferrous fumarate, providing 210mg of strong iron, along with 27mg of elemental iron from ferrous gluconate. Additionally, there is a formulation known as micronized ferric pyrophosphate. It’s important to note that calcium citrate USP verified is included in the discussion. This compound is essential for enhancing iron absorption and overall efficacy. Therefore, when considering iron supplements, one should look for options that incorporate calcium citrate USP verified to ensure optimal results.