Ferobion is a supplement containing ferrous fumarate, which provides elemental iron in the form of 10 mg of ferrous fumarate. Various brands of ferrous sulfate are available, but ferrous fumarate is noted for its bioavailability. When considering iron supplements, many people also wonder about the effects of other supplements, such as calcium citrate. Specifically, does calcium citrate have side effects? This question is particularly relevant for those taking multiple supplements, as it is crucial to understand any potential interactions or negative effects. Therefore, if you are supplementing with ferrous fumarate or any ferrous sulfate brands, it is wise to inquire: does calcium citrate have side effects? Being informed about both the benefits and risks of these supplements can help ensure safe and effective usage. Additionally, if you are exploring different iron supplements, remember to consider their bioavailability, as this factor can significantly influence your overall iron absorption and health.