Likewise, blood loss, or malabsorption are considered to be the main causes for low iron after ruling out any of a number of blood disorders, however low iron can very easily result from manganese levels having been low for a long period of time, or from other factors such as excessive calcium, zinc, or magnesium levels reducing iron values. Cellular levels of iron best correspond to actual symptoms of excess or deficiency, in contrast to blood levels, which unfortunately fluctuate considerably under various medical situations, particularly with infections. Following are some interactions of iron and manganese with other elements:... Full Text