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.
Any loss of body fluid will lead to loss of some micronutrients. The commonest deficiency is, of course, iron deficiency as a result of menstrual or other blood loss. Diarrhoea can be a significant cause of zinc deficiency, setting up a vicious circle of worsening diarrhoea as a result of zinc deficiency.