What caused the Iran hostage crisis? A: The Iran hostage crisis occurred when Mohammed Reza Pahlavi, a domineering Iranian ruler who was recently expelled from his country, was granted access into the United States by President Jimmy Carter to receive cancer treatment.
There are five main categories of mineral deficiency: calcium, iron, magnesium, potassium, and zinc. Calcium is needed for strong bones and teeth. It also supports proper function of your blood vessels, muscles, nerves, and hormones.
What Is Iron Deficiency Anemia? Iron is a mineral that is important not only to all the cells in our body, but it is especially important to red blood cells. Red blood cells make hemoglobin, which carries oxygen to the tissues in our bodies. Normal Iron levels are 40-150 ug/dL (female) and 50-160 ug/dL (male).