For many people, iron supplementation is entirely appropriate and can be life-changing. There is no question that true iron deficiency anaemia exists, and when the body genuinely lacks iron because of blood loss, pregnancy, poor intake, or difficulties with absorption, restoring those levels can be an important part of recovery.

Yet over the years, both in clinic and through my studies, I have met many people who don’t fit neatly into that picture. They have taken iron supplements faithfully and watched their ferritin levels climb or consistently fluctuate, yet they continue to feel exhausted. Others have been told their ferritin is normal, despite experiencing symptoms commonly associated with iron deficiency. Some are confused because their ferritin is elevated, only to be told that it is “just inflammation”, without any explanation of what that actually means.

It is these experiences that invite a different question. Rather than focusing solely on whether there is enough iron in the body, could it sometimes be more helpful to ask how effectively that iron is being regulated, recycled and made available for use?

Ferritin, after all, is a storage protein. It gives us useful information about how much iron appears to be held in reserve at a particular moment in time, but it does not necessarily tell us how efficiently iron is moving around the body, whether it is reaching the tissues that require it, or why the body may have chosen to store it in that way. One analogy that has always stayed with me is that measuring ferritin alone is a little like judging a car by the size of its boot without asking whether the engine actually works. Storage matters, of course, but it is only one part of a much bigger story.

One of the most remarkable aspects of human physiology is that the body has evolved an incredibly efficient iron recycling system. Although we absorb only around one to two milligrams of iron from food each day, we require somewhere in the region of twenty to twenty-five milligrams daily to produce new red blood cells. The difference comes from recycling. Every day, specialised immune cells dismantle ageing red blood cells, recover the iron they contain, and return it to circulation so that it can be used again. When you understand this, it naturally shifts the conversation away from simply asking, “Why don’t I have enough iron?” and towards asking whether the body’s ability to recycle and utilise iron is functioning as it should.

Conventional medicine also recognises that iron metabolism changes during periods of inflammation. Ferritin behaves as what is known as an acute phase reactant, meaning that its levels can rise in response to infection, immune activation, liver stress and inflammatory processes. At the centre of this response is a hormone called hepcidin, which effectively alters the way the body handles iron. During times of stress or illness, hepcidin reduces iron absorption from the digestive tract and encourages iron to remain tucked away in storage sites. It is thought that this may have evolved as a protective mechanism, limiting the availability of iron to invading microorganisms that also depend upon it for survival.

Seen through this lens, the body appears far less broken than we are often led to believe. Sometimes it may be adapting intelligently to the circumstances it finds itself in, prioritising protection over abundance. This does not mean that every low iron marker reflects hidden inflammation, nor does it suggest that supplementation is never appropriate. It simply reminds us that the context surrounding a blood result often matters just as much as the result itself.

Through my studies with Morley Robbins and the Root Cause Protocol, I became increasingly curious about another aspect of this story: the role of copper in iron metabolism. Morley’s work proposes that, in some individuals, the challenge may not be a simple lack of iron but rather an inability to move and recycle it efficiently. He highlights the importance of copper-containing proteins such as ceruloplasmin, which help regulate the movement of iron throughout the body and support its safe reuse. While some of these ideas sit outside mainstream medicine and continue to be explored and debated, they resonated deeply with the question so many people ask in clinic: why do some individuals continue to struggle despite repeated iron supplementation?

The late Dr Ray Peat approached the subject from a slightly different angle, often speaking about the relationship between iron, oxidative stress and metabolism. Iron is essential for carrying oxygen, producing energy and supporting healthy physiology, yet because it readily exchanges electrons, it also has the capacity to contribute to oxidative stress when poorly regulated. Dr Peat frequently encouraged people to think beyond individual nutrients and instead consider the wider terrain in which they exist. The health of the liver, the quality of the diet, the balance of protective nutrients and the resilience of metabolism all influence how effectively the body manages something as powerful as iron.

Perhaps this is the most important point of all. Iron is neither good nor bad. It is essential to life, allowing us to carry oxygen, produce haemoglobin and generate energy within our cells. At the same time, balance matters. Too little iron creates challenges, but so can excess iron in the wrong place at the wrong time. The goal is not fear, nor is it blind supplementation. The goal is understanding.

If you have been diligently taking iron supplements, undergoing infusions, or repeatedly trying to raise your ferritin without any meaningful improvement in how you actually feel, that in itself may be an important clue. It doesn’t necessarily mean that iron was the wrong approach, but it may suggest that there is another layer of the story waiting to be explored.

‘If you keep topping up the tank and the car still won’t run, perhaps it’s time to look under the bonnet.’

This broader perspective is one of the reasons we combine functional thinking, bioenergetic principles and BICOM bioresonance at Inna. Rather than focusing solely on a ferritin number, we explore the wider terrain in which that number exists. We might consider digestive health and nutrient absorption, the impact of stress on the nervous system, thyroid and liver function, inflammatory burden, dietary patterns and the body’s overall regulatory capacity. Through BICOM, we can also assess how the body’s regulatory systems are responding, including mineral resonance points and the organs involved in nutrient regulation, with the intention of supporting the body’s own ability to adapt and find balance.

Ferritin is an incredibly useful marker, but it is only one piece of a much larger puzzle. Sometimes the answer really is iron deficiency, and replacing what has been lost can be transformative. At other times, the body may be telling a more complex story about inflammation, regulation, metabolism and resilience. Approaching that story with curiosity rather than fear allows us to move away from the idea that we are simply broken and towards a deeper appreciation of the intelligence with which the body is constantly trying to protect, adapt and heal.

Perhaps the most important question isn’t simply, “How do we push this number back into range?” but rather, “What might this result be trying to tell us?” More often than not, that is where the real detective work begins, and where a more compassionate and complete understanding of health can emerge.

This article is intended for educational purposes only and should not replace personalised medical advice. If you have concerns about your iron levels or have been advised to take prescribed iron, please discuss any changes to your treatment plan with your healthcare provider.