Any dietary or drug treatment with high-dosed micronutrients needs medical supervision.
The most important use of iron supplements is to treat anemia (low levels of iron in the blood) caused by iron deficiency. Anemia can be caused by many conditions, including menstrual loss, pregnancy, blood donation, bleeding ulcers, surgery (before and after), and chronic diseases such as cancer and kidney failure.
Restless legs syndrome (RLS) is a neurological movement disorder that is often associated with sleep problems due to unpleasant sensations resulting in an irresistible urge to move the legs.
RLS occurs in some people with iron deficiency and some RLS patients benefit from iron supplementation.