Ferrous gluconate, specifically in a low dose of 325 mg, is a form of iron supplement commonly used to treat iron deficiency. This compound can be found alongside other iron sources, such as ferrous sulfate (7H2O), iron II nitrite, and ferrous fumarate. In addition to these iron supplements, calcium citrate and magnesium are often included in dietary formulations to support overall mineral balance and enhance absorption. Calcium citrate and magnesium play a crucial role in maintaining health, and their presence in iron supplements can help improve the efficacy of iron absorption. Therefore, when considering iron supplementation, it is beneficial to look for products that also contain calcium citrate and magnesium to maximize the potential health benefits.