Another symptom is frequent infections where a person falls sick more often than is normal. As mentioned above, iron is necessary for a strong immune system, and therefore low levels of this mineral will weaken your body’s immune system, making you more vulnerable to infections. You may end up falling sick every other time and get serious infections that your body would normally fight off if your immune system were functioning normally.
Insufficient amounts of iron in the body mean that the red blood cells will be unable to carry oxygen (or will carry insufficient amounts of it) to the spleen, which is one of the body organs where infections can be fought off. This means that the body’s immune system will be weakened, leading to more frequent infections.
Low iron levels lead to less oxygen being carried to the lymph nodes, which house white blood cells that protect the body from any infections and diseases. Iron deficiency also causes the low production of white blood cells, which are essential for fighting off infections. A low white blood cell count means the body is susceptible to infections. The body usually needs enough white blood cells to protect itself from diseases and infections, therefore enough iron is needed in the diet for the production of sufficient white blood cells, enough to ward off any infection.
Therefore, if you fall sick often, and especially if you are always suffering from respiratory illnesses, you need to see a physician as iron deficiency may be the cause of that. People rarely associate a weak immune system, and hence frequent illnesses and infections, with low iron levels in the body. Eating an iron-rich diet takes care of that problem and ensures your body’s immune system is functioning optimally and well-primed to fight off any infection that may occur.