Iron Deficiency Anemia (DEA) is one of the acquired anemia, which is seen as a result of insufficient intake of iron necessary for the body or rapid decrease in iron stores (Internal Medicine Nursing Book with Case Scenarios, 2019). It is the most common anemia in the world and constitutes 50% of anemias (Internal Medicine Nursing Book with Case Scenarios, 2019). It is stated that the incidence is increasing in low-income societies (As Iron Turkey Program Guide; Erduran ,2010). In studies on adults, the frequency of IDA is around 20%, and it is most commonly seen in women due to pregnancy and menstruation (Iron Deficiency and Iron Deficiency Anemia Clinical Protocol, 2020).

The aim of the "Turkey Like Iron" program, which was started in our country in 2004, is to try to prevent iron deficiency anemia as new generations are the adults of the future (As Iron Turkey Program Guide). The most common findings in patients with iron deficiency anemia are fatigue, weakness, activity intolerance, hair loss and thinning, thinning-breaking-flattening of nails, and headache (Dağ, Kıyak, 2021; Guide, 2019). The reason for fatigue, which is one of these symptoms, is the decrease in the amount of oxygen carried to the tissues as a result of the low hemoglobin level in the blood (Dağ, Kıyak, 2021). Depending on the inability to carry enough oxygen to the muscles, activity intolerance occurs in people (Dağ, Kıyak, 2021). The degree of anemia affects the severity of fatigue (Dağ, Kıyak, 2021). The severity of fatigue also affects the person's ability to perform activities of daily living (Ovayolu, Ovayolu, 2017). Oral or parenteral iron replacements are used in the treatment of anemia that causes fatigue and activity intolerance (Kılavuz, 2019). However, some side effects may be seen in patients due to the use of oral iron drugs (Kılavuz,2019; Çipil, Demircioğlu, 2016). These side effects are stated as tooth discoloration, nausea, vomiting, indigestion, constipation, diarrhea, and darkening of stool color (Kılavuz, 2019; Çipil, Demircioğlu, 2016). Patients cannot continue treatment due to these side effects (Kılavuz,2019; Çipil, Demircioğlu, 2016). Trainings given to patients to increase adherence to treatment can be effective in coping with the treatment process and side effects (Aydemir Geduk, 2018). It is stated that the symptoms experienced by the patients who continue the treatment will decrease in a short time such as 1 month (Çipil, Demircioğlu, 2016; Bolaman, 2004). However, it was stated by the experts that the treatment should be continued for 3-6 months in order to replace the iron stores (Guide, 2019). When the increase in the hemoglobin values of the patients who continue the treatment and the oxygen carried to the tissues reach a sufficient level, the symptoms such as fatigue and activity intolerance will decrease and disappear over time (Kılavuz, 2019; Dağ, Kıyak, 2021).

Considering the authorities and responsibilities of the nursing profession, one of the most important is to provide training in line with the needs of the patient and their relatives. Nurses provide training to individuals in order to protect and improve the health of the individual, family and society, and to gain the right health behaviors to improve in case of illness (Aydemir Geduk, 2018). From past to present, training given to patients by healthcare professionals increases patients' adherence to treatment (Yel, Kardadakovan, 2021).