5 signs your body may not be getting enough iron

Iron is an essential mineral that the body needs to produce haemoglobin, a protein in red blood cells that carries oxygen from the lungs to other parts of the body. 

When the body does not have enough iron to meet its needs, iron deficiency can develop. If the deficiency becomes severe enough to reduce haemoglobin levels, it can lead to iron-deficiency anemia.

The condition may develop gradually, and some people may not notice symptoms at first. Others may experience tiredness, weakness, shortness of breath or changes in their skin, hair and nails.Iron deficiency can occur for several reasons. These include blood loss, increased iron requirements during pregnancy, inadequate dietary intake and problems absorbing iron from food. 

Heavy menstrual periods are a common cause among women of reproductive age, while blood loss from the digestive tract can be responsible in other groups.

Recognising possible symptoms is important, but no single symptom can confirm that a person has an iron deficiency. Other health conditions can produce similar signs, and blood tests are needed to establish the diagnosis.

In this article, Tribune Online highlights five signs your body may not be getting enough iron.

Persistent tiredness and weakness

Persistent tiredness  is one of the most common symptoms associated with iron deficiency.

Iron is necessary for the production of haemoglobin, which enables red blood cells to transport oxygen around the body. When iron levels become insufficient, the body may struggle to produce enough healthy red blood cells and haemoglobin.

As a result, a person may feel unusually tired, weak or lacking in energy. This tiredness can be different from ordinary fatigue after a long day of work, exercise or inadequate sleep. A person may continue feeling exhausted even after resting or sleeping for a reasonable period.

Some people may also find it increasingly difficult to complete their usual daily activities. Tasks that previously felt manageable, such as walking moderate distances, climbing stairs or concentrating on work, may become more tiring. 

However, persistent fatigue does not automatically mean that a person has an iron deficiency. Poor sleep, stress, infections, thyroid disorders and other medical conditions can also cause tiredness.

The important point is to pay attention when fatigue is persistent, unexplained or begins to interfere with daily life. A healthcare professional may recommend blood tests to assess haemoglobin levels and investigate whether iron deficiency or another condition is responsible.

Pale skin or changes in the colour of the inner eyelids

Another possible sign of iron-deficiency anemia is skin that looks paler than usual.Haemoglobin gives blood its red colour. When haemoglobin levels are low, some people may notice that their skin appears paler, although this sign can be subtle and is not present in everyone.

The change may be more noticeable in the face, lips, gums, nail beds or the inner surface of the lower eyelids. 

However, skin colour varies naturally between individuals. Lighting conditions, complexion and other health factors can also affect how pale someone appears. Looking at the skin alone is therefore not a reliable way to diagnose iron deficiency.

A person who has always had a naturally light or dark complexion should not use skin colour as the only measure of their iron status.

What matters more is a noticeable change from the person’s usual appearance, particularly when it occurs alongside fatigue, weakness or other unexplained symptoms.

Paleness can also be associated with other forms of anemia and certain medical conditions. If you notice unusual paleness that persists, arrange a medical assessment. A blood test can help determine whether anaemia is present and whether further investigations are needed to identify its cause.

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Shortness of breath and racing heartbeat

Iron deficiency can lead to shortness of breath  and noticeable heartbeats, particularly when it progresses to anemia. When haemoglobin levels fall, the blood may carry less oxygen to the body’s tissues. The body responds in different ways to maintain oxygen delivery, and the heart may need to work harder.

A person may therefore notice breathlessness during activities such as walking quickly, climbing stairs or carrying heavy objects. In more significant cases, breathlessness may occur with relatively little activity. Some people may also experience palpitations, which are sensations of the heart beating unusually fast, strongly or irregularly.

These symptoms can affect a person’s ability to exercise or carry out routine activities. Someone who previously walked comfortably to work, for example, may begin to feel unusually breathless on the same journey. 

However, shortness of breath and palpitations are not specific to iron deficiency. Heart conditions, lung diseases, anxiety, infections and other problems can produce similar symptoms.

Sudden or severe breathlessness, chest pain, fainting or a racing heartbeat accompanied by significant weakness requires urgent medical attention rather than an assumption that the person simply needs more iron. For symptoms that develop gradually, a healthcare professional can assess the person’s medical history and arrange appropriate tests.

Frequent headaches, dizziness or difficulty concentrating

Some people with iron deficiency, particularly those who have developed anemia, experience headaches, dizziness or difficulty concentrating. 

The brain needs a continuous supply of oxygen to function properly. When haemoglobin levels are low, oxygen delivery may be affected, contributing to symptoms such as headaches or light-headedness.

A person may feel dizzy when standing up, experience recurring headaches or struggle to maintain concentration during work or study.

For students and working adults, these symptoms can make ordinary tasks more difficult. Reading, writing, attending lectures or completing assignments may become frustrating when concentration and energy levels are reduced.

However, headaches and dizziness have many possible causes. Dehydration, migraine, inadequate sleep, changes in blood pressure and other conditions may produce similar symptoms. 

Difficulty concentrating can also result from stress, fatigue or sleep problems. It should not automatically be attributed to an iron deficiency.The combination of symptoms is important. For example, recurring headaches alongside persistent tiredness, unusual paleness and breathlessness may justify an assessment for anemia.

A healthcare professional can decide whether blood tests or other investigations are appropriate. Severe, sudden or unusual headaches, especially when accompanied by weakness, confusion or other neurological symptoms, require urgent assessment.

Brittle nails, hair loss or an unusual craving for non-food substances

Iron deficiency can sometimes cause physical changes involving the nails, hair, tongue or eating behaviour. Some people notice that their nails become brittle , break easily or develop an unusual shape. In more established cases of iron-deficiency anemia, the nails may become thin and spoon-shaped.

Hair thinning or increased hair shedding can also occur in some people with iron deficiency, although hair loss has several other possible causes, including genetic factors, hormonal changes, scalp conditions and other nutritional deficiencies.

Another unusual symptom is pica, a condition involving cravings for substances that are not food. People with iron deficiency may develop a craving for items such as ice, soil, clay or paper. These cravings should not be dismissed as unusual habits, particularly when they develop alongside other possible symptoms of iron deficiency.

Eating soil or other non-food substances can introduce harmful contaminants, parasites or chemicals into the body. Ice chewing may also damage teeth in some circumstances. Changes in the tongue and mouth can occur as well. A person may develop a sore or unusually smooth tongue, cracks at the corners of the mouth or discomfort when swallowing.

None of these signs alone confirms an iron deficiency. Hair loss, nail changes and mouth symptoms can result from other health conditions or nutritional problems. 

If these changes are persistent or occur alongside fatigue, paleness or breathlessness, seek medical advice rather than starting iron supplements without an assessment.