4. Palpitations in the heart
If you find that you are experiencing an unusually strong heartbeat, and the sensation comes and goes, low levels of iron could be to blame. Again, this symptom is directly related to the hemoglobin that iron is responsible for creating. Hemoglobin generates red blood cells, which carry oxygen from the lungs to every other element within the body, including the heart.
If you aren’t getting enough iron, you aren’t producing enough red blood cells. As a result, the heart may end up having to work overtime in order to transport the oxygen that your body needs to thrive. This can lead to heart palpitations, which can present as irregular heartbeats (a heartbeat that feels unusually strong from time to time) or an abnormally fast heartbeat. In extreme cases of iron deficiency, an enlarged heart or a heart murmur can develop, or even heart failure.