Iron is a crucial nutrient that plays a vital role in many functions in the body, particularly in the production of red blood cells and the transport of oxygen. But a lack of iron doesn’t always mean someone is anaemic – and it doesn’t always show obvious symptoms. Iron deficiency can exist on its own, quietly affecting energy levels, brain function, and overall health long before it progresses to anaemia.
A Hidden Deficiency
Iron deficiency is the most common micronutrient deficiency worldwide. Women of reproductive age, pregnant women, children, vegetarians, athletes, and frequent blood donors are especially vulnerable. But how many realise they’re iron deficient before it becomes a bigger issue?
Many don’t — and symptoms like fatigue, breathlessness, or difficulty sleeping may be brushed off as stress, parenting, or a busy schedule. Yet they can be early signs that your iron stores are running low.
Does Low Iron Always Cause Symptoms?
Interestingly, not everyone with low iron feels unwell. In clinical studies, only those who reported symptoms like fatigue experienced noticeable improvements with supplements. For others, low iron might go completely unnoticed.
When Iron Tablets Aren’t Enough: The Role of Iron IVs
For many people, especially those with more advanced deficiencies or absorption issues, oral iron tablets don’t always work. They can cause stomach discomfort, constipation, and take months to restore normal levels. That’s where Iron IV (intravenous) therapy comes in.
Iron infusions deliver iron directly into the bloodstream, bypassing the digestive system entirely. This makes them especially valuable for individuals with gut absorption problems (like coeliac disease or IBD), those who’ve had gastric surgery, or anyone who hasn’t responded to oral supplements.
Iron IV therapy is often recommended for both men and women when a rapid correction of iron deficiency is needed — not only in cases of anaemia, but also when low iron levels are causing fatigue, poor concentration, reduced exercise tolerance, or impacting quality of life. Unlike oral supplements, intravenous iron restores iron stores quickly and effectively, making it an ideal option for those who don’t absorb iron well, have digestive sensitivities, or need to recover their levels urgently.
What makes iron infusions so effective is that they can replenish iron stores within weeks, sometimes even after just one or two sessions. Many patients report a significant improvement in fatigue, mental clarity, and physical stamina soon after treatment — especially if they had very low iron or ferritin levels before.
Food First, Supplements When Needed
Of course, prevention is ideal. Red meat, liver, poultry, legumes, dark leafy greens, chickpeas, and lentils are all excellent sources of iron. Heme iron (from animal products) is more easily absorbed, while non-heme iron (from plants) is better absorbed when paired with vitamin C-rich foods like citrus, tomatoes, or bell peppers.
In some cases — especially during pregnancy, infancy, or when symptoms are present — iron supplements or infusions can be necessary. But this should always be guided by a healthcare professional, based on blood tests and clinical history.
