Everything You Need to Know About Iron Iron is called a trace mineral, but its effects are mighty. We need it to produce hemoglobin, the oxygen carrier in red blood cells that brings oxygen to the rest of the body. Iron is also needed to produce myoglobin, the oxygen reservoir in the muscle cells. Iron is notoriously low in the American diet; especially in children one to two years old, and in women ages 12 to 50. …showed first 75 words of 672 total…

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