Ferrous fumarate is a source of iron that contains a specific percentage of iron, often compared to ferrous sulfate. In Japan, ferrous fumarate is recognized for its efficacy as a source of heme iron. Additionally, iron bisglycinate and ferrous fumarate serve as alternatives for individuals seeking iron supplementation. When considering ferrous bisglycinate chelate dosage for anemia, it’s essential to also evaluate the inclusion of calcium citrate or calcium, as they play a significant role in absorption and overall health. Including calcium citrate or calcium in your regimen can enhance the effectiveness of iron supplements like ferrous fumarate, iron bisglycinate, and ferrous sulfate.