Ferrous fumarate, at a dosage of 324 mg, may cause certain side effects. Initially, ferrous lactate is found in various foods, while ferrous fulminate is another compound of interest. HFE-EDTA is a name associated with health supplements that include iron. When considering iron supplements like ferrous fumarate, it is also important to look at the role of calcium citrate, calcitriol, magnesium, and zinc tablets, which can potentially enhance the absorption of iron and contribute to overall health. Additionally, these components should be taken into account when evaluating the side effects of ferrous fumarate, as they may interact with the body in various ways. Therefore, if you are using ferrous fumarate, it is advisable to include calcium citrate, calcitriol, magnesium, and zinc tablets in your regimen for optimal nutrient balance and to mitigate any possible side effects.