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Understanding iron deficiency and iron deficiency anaemia

Iron deficiency (ID) is a condition in which the body does not have as much iron as it needs. Iron deficiency anaemia (IDA) is a more severe form of ID where the lack of iron stops the body from making enough of a protein called haemoglobin.


What is ID/IDA?


The iron from food (e.g. in meat or dark-green leafy vegetables) is used to build a protein called haemoglobin, which is an important part of red blood cells. Red blood cells use haemoglobin to carry oxygen to all of the body’s organs and tissues.

Having ID/IDA means that the body has too little iron available to make as much haemoglobin and as many new red blood cells as normal. The red blood cell level will start to drop because the old ones cannot be replaced quickly enough, and the new red blood cells that are made will be smaller than usual. This means that less oxygen can be carried, causing the symptoms you may be feeling.



How common is ID/IDA?


ID and IDA are both very common.1,2

ID affects about 1 in 4 people across the world2

IDA affects about 1 in 6 people across the world2


The body is normally good at balancing the amount of iron it takes in from food with the amount it loses, although sometimes it can go out of balance. Some of the most common reasons this happens are:3,4

Diets low in iron – there is not enough iron in the diet for the body to replace what it is normally losing

Heavy periods – the body loses iron each month that it finds hard to replace

Pregnancy – the body makes more blood for itself and the baby, and the baby needs extra iron to grow

Taking certain medicines such as ibuprofen or aspirin                                                                                            

Other conditions that can cause ID/IDA include:3,5

How can FERACCRU® help?


FERACCRU® is a capsule containing iron that is used to treat adults with iron deficiency. The capsules give the body extra iron, with the aim of making more haemoglobin to raise iron levels back to normal.


Normalising your iron stores should improve any symptoms you may have been experiencing relating to ID/IDA, allowing you to do everyday activities to help you feel like yourself again.





  1. Camaschella C. Hematology Am Soc Hematol Educ Program 2015;2015:8–13.
  2. Lopez A, et al. Lancet 2016;387(10021):907–916.
  3. Mayo Clinic. Iron deficiency anemia. Available at: Accessed December 2021.
  4. NHS. Iron deficiency anaemia. Available at: Accessed December 2021.
  5. American Society of Hematology. Iron deficiency anemia. Available at: Accessed December 2021.