Iron deficiency explained: The signs you shouldn’t ignore
Iron deficiency, also known as iron deficiency anaemia, is one of the most common health conditions worldwide. It occurs when the body doesn’t have enough iron to produce healthy red blood cells, which are essential for carrying oxygen throughout the body. As a result, reduced oxygen delivery can affect overall energy levels and organ function.
Common Symptoms
Many people experience symptoms of low iron without realising the underlying cause. These may include persistent fatigue, low energy, weakness and dizziness. Some individuals notice pale skin, shortness of breath or difficulty concentrating. Because the signs can be subtle or develop gradually, iron deficiency often goes unnoticed until it becomes more severe.
Causes of Low Iron
There are several reasons why iron levels become depleted. Poor dietary intake is a common factor, particularly in individuals who don’t consume enough iron-rich foods. Blood loss, such as from heavy menstrual bleeding, can significantly reduce iron stores over time. Pregnancy increases the body’s demand for iron, making deficiency more likely. Additionally, certain conditions like celiac disease can impair the body’s ability to absorb iron effectively.
Treatment Options
- Oral Iron Supplements
Oral iron supplements, such as ferrous sulphate, are typically the first line of treatment. While effective for many people, they can take weeks to months to restore iron levels. Some individuals experience side effects such as nausea or constipation, and in certain cases, the body may not absorb the iron efficiently. - Iron Infusion (IV Iron Therapy)
An iron infusion is an alternative treatment where iron is delivered directly into the bloodstream through an intravenous (IV) drip. This method bypasses the digestive system, making it especially useful for individuals with moderate to severe deficiency, poor absorption or intolerance to oral supplements. - Iron Infusion Benefits
An iron infusion offers several advantages. It can rapidly increase iron levels, leading to faster relief of symptoms such as fatigue and weakness. Many patients report improved energy and overall wellbeing soon after treatment. It’s also highly effective for those who don’t respond well to oral iron therapy.
What to Expect
Iron infusions are typically performed in a clinic or hospital setting. The treatment involves an IV drip that may take anywhere from 15 minutes to a few hours, depending on the type of iron used. Common formulations include iron sucrose and ferric carboxymaltose. Most people can return to their normal activities shortly after the procedure.
Safety & Side Effects
Iron infusions are generally safe and well-tolerated. Mild side effects can include headache, nausea or slight discomfort at the injection site. Serious reactions are rare, and the procedure is carefully monitored by healthcare professionals to ensure patient safety.
Key Takeaway
Low iron is a common but treatable condition. Persistent fatigue or weakness shouldn’t be ignored, as they may indicate an underlying deficiency. A simple blood test can confirm the diagnosis. For those who need faster or more effective treatment, an iron infusion is a safe and efficient option that can significantly improve quality of life.

Dr. James Maguire, General Practitioner, IMC Serangoon Gardens
To book a consultation with Dr. James, schedule an appointment via the IMC Health app, call +65 6733 4440, email [email protected], or visit imc-healthcare.com

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