Iron is an essential mineral that every person needs during every stage of life. Your cells depend on iron to produce hemoglobin, a vital protein that carries oxygen throughout the body. When your cells don’t have enough oxygen, they can’t function properly, and as a result, can become fatigued. While iron is essential at every age, the amount of iron you need can vary based on your age, weight, and life stage. For example, most women are recommended to take a higher dose of iron during pregnancy,...