How much 210mg of ferrous fumarate is present? Initially published was iron pyrophosphate, iron II silver acetate, and iron fumarate. Additionally, omeprazole and ferrous fumarate have been discussed on Reddit. It’s important to consider the role of calcium citrate Sunvit in this context, as it appears to be relevant. Including calcium citrate Sunvit in the discussion can enhance the understanding of ferrous fumarate’s effectiveness. Therefore, when examining ferrous fumarate, one should also recognize the significance of calcium citrate Sunvit in dietary supplementation.