What Is The Importance Of Iron?
“The health benefits of iron relate to a proper growth of human body and maintenance of robust health. It is an essential protein component for metabolism, and the human body needs it to produce red blood cells. The human body is capable of preserving up to 25% of it for future use, especially in the cases of inadequate diet intake, which is a backup plan for reducing the impact of anemia, if its intake suddenly declines.
In our body, about 70% of iron is found in hemoglobin and myoglobin. Hemoglobin is the primary transporter of oxygen from the lungs to the body’s tissues, while myoglobin is in muscle cells, and makes acceptance, storage, transportation, and release of oxygen possible in those cells. About 5% of it is found as components of various proteins and as necessary elements in certain enzymatic reactions.
Finally, up to 25% of the body’s iron is stored in ferritin, which is present in the cells. Ferritin can store up to three years’ worth of iron supplementation for men, but only about one year’s worth for women, which is why anemia is more common in females. The role and importance of this mineral cannot be underestimated, primarily because the deficiency is unpleasant and dangerous.” 
What are the health benefits of iron?
“Iron deficiency anemia is the world's most common nutritional deficiency disease and is most prevalent among children and women of childbearing age.
This type of anemia develops due to an inadequate amount of iron in the diet, impaired iron absorption, acute blood loss caused by hemorrhage or injury, or gradual blood loss such as from menstruation or gastrointestinal bleeding.
Inadequate intake of vitamin C can also contribute to iron deficiency as vitamin C is needed to absorb iron found in plant foods (non-heme iron).
Iron-deficiency anemia should not be confused with megaloblastic anemia which results from inadequate intake and/or utilization of folate and vitamin B12. Pernicious anemia is a form of megaloblastic anemia caused by a lack of a substance called intrinsic factor in the stomach that results in poor absorption of vitamin B12.
Medical News Today Knowledge Center feature is part of a collection of articles on the health benefits of popular vitamins and minerals. It provides an in-depth look at recommended intake of iron, its possible health benefits, foods high in iron and any potential health risks of consuming iron.” 
Health Effects of Iron in Drinking Water
“Pure water has no taste, but water is a natural solvent. Most minerals from groundwater, including iron, will be absorbed by water. Large amounts of iron in drinking water can give it an unpleasant metallic taste. Iron is an essential element in human nutrition, and the health effects of iron in drinking water may include warding off fatigue and anemia.”
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 Medical News Today - What are the health Benefits of Iron
 Livestrong Foundation - Health Effects of Iron in Drinking Water