Left untreated, an iron deficiency can develop into iron deficiency anemia and result in heart problems, depression, pregnancy issues and a higher chance of infections. 
Only take iron supplements if your doctor prescribes them, as too much iron can damage your heart, liver and pancreas. 

 

Conclusion: 

Iron deficiency anemia is the most common type of anemia worldwide.

Some people will experience no symptoms while others will experience one or more of the ones listed in the blog. Most forms of this deficiency can be treated with an iron-rich diet and or iron supplements (if recommended from your doctor).