Why Isn't My Iron Improving? The Missing Piece Most Women Don't Know About
If you've been taking iron supplements for months, or even had an iron infusion, only to watch your ferritin levels drop again, you're probably asking the same question I hear almost every week in clinic:
"Why won't my iron stay up?"
Iron deficiency can be incredibly frustrating. You follow the advice, eat more iron-rich foods, take your supplements faithfully and perhaps even undergo an iron infusion, only to find yourself back where you started a few months later.
The reality is that low iron isn't always caused by a lack of iron. More often, it's a sign that something is preventing your body from absorbing, utilising or retaining it properly.
If you've tried "everything" and nothing seems to work, it's time to look beyond simply taking more iron.
Iron Deficiency Affects More Than Your Energy
Iron is essential for producing healthy red blood cells, but its role extends far beyond that.
When your iron stores are low, you may experience:
Constant fatigue
Shortness of breath
Brain fog and poor concentration
Feeling overwhelmed or emotional
Poor exercise tolerance
Hair loss
Cold hands and feet
Reduced immunity
Ongoing inflammation
Restless legs
Many people begin experiencing symptoms well before they meet the laboratory definition of iron deficiency anaemia.
In my clinic, it's common for women with ferritin levels below around 50 µg/L to report that they simply don't feel like themselves. While everyone's symptoms are different, low ferritin can have a significant impact on quality of life long before it becomes severe enough to affect haemoglobin levels.
Looking Beyond Iron, Ferritin and Transferrin
If you've been investigating low iron for a while, you're probably familiar with blood tests such as ferritin, serum iron and transferrin saturation.
These are all valuable, but there's another important player that rarely gets discussed.
It's called hepcidin.
Understanding hepcidin can completely change the way we think about treating iron deficiency.
Hepcidin: Your Body's Iron Gatekeeper
Think of hepcidin as your body's iron gatekeeper.
It's a hormone produced by the liver that carefully controls how much iron you're allowed to absorb from food and supplements.
This is actually a clever survival mechanism.
Too much iron can increase oxidative stress, promote inflammation and even provide fuel for certain bacteria and other pathogens. Hepcidin helps protect us by preventing excess iron from entering the bloodstream when the body senses it may not be safe.
The problem is that sometimes this protective system works against us.
When hepcidin levels are elevated, your body closes the gate on iron absorption. Iron becomes trapped inside intestinal cells and immune cells, leaving less available for making healthy red blood cells, even if you're taking iron supplements every day.
For someone with chronically low ferritin, this can be incredibly frustrating.
Why Does Hepcidin Become Elevated?
Hepcidin naturally rises in response to several situations, including:
Chronic inflammation
Ongoing infections
Certain chronic diseases
Gut conditions such as coeliac disease or inflammatory bowel disease
Recent oral iron supplementation
This is one of the reasons simply taking more iron doesn't always solve the problem.
If inflammation or gut dysfunction is driving high hepcidin levels, your body may continue blocking iron absorption regardless of how much iron you're swallowing.
This is why understanding the underlying cause of your iron deficiency is so important.
Why Alternate-Day Iron Dosing May Work Better
One of the most exciting developments in iron research over recent years has been the discovery that more isn't necessarily better when it comes to iron supplements.
Each time you take an iron tablet, your body temporarily increases hepcidin production.
If you take another dose before hepcidin levels have fallen again, you may actually absorb less of that second dose.
Research suggests that taking approximately 50–100 mg of elemental iron every second day may improve absorption in many people by allowing hepcidin levels time to return to baseline between doses.
This doesn't mean alternate-day dosing is right for everyone, and it shouldn't replace personalised medical advice. The appropriate dose and timing depend on the severity of your deficiency, your medical history and the underlying cause of your low iron.
However, for many people, it's a simple change that can make oral iron both more effective and better tolerated.
What About Iron Infusions?
Iron infusions can be an excellent treatment when they're needed.
For people with severe iron deficiency, significant symptoms, poor tolerance to oral iron or medical conditions that limit absorption, an infusion can rapidly replenish iron stores and help people feel much better.
However, if your ferritin repeatedly falls after an infusion, it's worth asking a different question:
Why isn't my body maintaining its iron stores?
Rather than simply repeating infusions, I like to investigate what may be contributing to the ongoing problem.
Finding the Root Cause
This is where naturopathic care can make a real difference.
Instead of focusing only on replacing iron, I also want to understand why your iron became depleted in the first place.
Depending on your history, this may involve investigating:
Heavy menstrual bleeding
Coeliac disease
H. pylori infection
Gastritis
Inflammatory bowel disease
Chronic gut inflammation
Poor stomach acid production
Gut microbiome imbalances
Gastrointestinal bleeding
Dietary intake
Chronic infections
Inflammatory conditions affecting iron metabolism
When we identify and address these underlying drivers, we're far more likely to achieve lasting improvements rather than temporary increases in ferritin.
A Personalised Approach to Restoring Iron Levels
There is rarely a single solution to chronic iron deficiency.
For some people, adjusting the timing of iron supplementation makes a remarkable difference. For others, improving gut health, reducing inflammation or treating an underlying digestive condition is the missing piece of the puzzle.
Every treatment plan I develop is tailored to the individual because no two cases of iron deficiency are exactly the same.
My goal isn't simply to help your blood test look better.
It's to help you restore your energy, improve your resilience and stop living on the rollercoaster of temporary fixes.
Ready to Get Your Iron Levels Back on Track?
If you've been taking iron supplements for months, or you've had one or more iron infusions without lasting improvement, it's time to stop asking, "How can I take more iron?" and start asking, "Why isn't my body holding onto it?"
Together we can investigate the underlying cause of your iron deficiency, optimise your iron absorption and develop a personalised plan to help you achieve lasting improvements in both your iron levels and your overall health.
If you'd like to find out whether we're the right fit, book a Free Meet Your Naturopath Call below.
