Black-eyed peas are an excellent source of iron. One cup of these beans contains 24 percent of your RDI. Iron is needed for the production of red blood cells (hemoglobin) which carry oxygen from the lungs to the rest of the body. When a person is deficient in iron, that person also becomes deficient in red blood cells. This condition is called anemia, and its symptoms include fatigue, dizziness, rapid heartbeat, shortness of breath, difficulty concentrating, pale skin, and leg cramps. Iron is especially important for pregnant women, who have an increase in blood volume during pregnancy with a 20-30 percent increase in red blood cell mass.
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