Could Low Iron Be the Reason You're So Tired?
You're exhausted. You struggle to concentrate. Your hair is falling out. You feel breathless walking upstairs.
You put it down to being busy.
Maybe you're juggling work, children, family life or simply trying to keep up with everything on your plate.
Then you have a blood test.
Your doctor tells you your iron is "normal."
But you still don't feel like yourself.
If this sounds familiar, you're not alone.
Iron deficiency is one of the most common nutritional deficiencies in women, yet it is often overlooked in the early stages. Many women experience symptoms long before iron deficiency progresses to anaemia, making it easy to dismiss persistent fatigue as stress, burnout or simply part of modern life.
Understanding your iron status is about much more than whether you're anaemic. Iron plays a vital role in nearly every system of the body, and even mildly depleted iron stores can leave you feeling far from your best.
Why Is Iron So Important?
Iron is best known for helping transport oxygen around the body, but its role extends well beyond healthy red blood cells.
Your body relies on iron to:
Produce energy
Support healthy brain function
Make thyroid hormones
Maintain a healthy immune system
Produce neurotransmitters involved in mood
Support healthy hair, skin and nails
Maintain physical performance
Support pregnancy and fertility
When iron levels fall, these systems begin to struggle, which is why iron deficiency can affect so many different aspects of your health.
Why Are Women More Likely to Become Iron-Deficient?
Women are significantly more likely than men to develop iron deficiency.
The most common reason is menstrual blood loss, particularly if periods are heavy or prolonged.
Other factors that may increase your risk include:
Pregnancy and breastfeeding
Vegetarian or vegan diets without careful planning
Low intake of iron-rich foods
Digestive conditions that affect absorption
Coeliac disease
Inflammatory bowel disease
Frequent blood donation
Endurance exercise
Chronic inflammation
Often, there is more than one contributing factor.
Common Symptoms of Iron Deficiency
Iron deficiency affects everyone differently, but common symptoms include:
Ongoing fatigue
Low energy
Brain fog
Difficulty concentrating
Poor memory
Hair loss or increased hair shedding
Brittle nails
Feeling cold
Headaches
Restless legs
Shortness of breath during exercise
Dizziness
Reduced exercise tolerance
Low mood
Increased anxiety
Many women are surprised to learn these symptoms can develop before anaemia is present.
Iron Deficiency Is Not the Same as Anaemia
One of the biggest misconceptions is that you either have anaemia or you don't.
In reality, iron deficiency develops gradually.
Your iron stores often become depleted long before your haemoglobin falls below the laboratory reference range.
This means you may feel tired, struggle to concentrate and notice changes in your hair or nails while still being told your blood tests are "normal."
Looking at the whole picture is often more helpful than relying on a single result.
What Blood Tests Should Be Checked?
Iron status is best assessed using a combination of blood tests rather than one marker alone.
Depending on your symptoms and medical history, your healthcare provider may recommend:
Ferritin
Serum iron
Transferrin saturation
Total iron binding capacity (TIBC)
Full blood count
C-reactive protein (CRP)
These markers help build a clearer picture of your iron stores, iron transport and whether inflammation may be influencing the results.
What Can Cause Low Iron?
Finding the reason for iron deficiency is just as important as replacing it.
Common causes include:
Heavy menstrual bleeding
Pregnancy
Poor dietary intake
Reduced stomach acid
Digestive disorders
Coeliac disease
Gut inflammation
Chronic blood loss
Increased physical demands
Simply taking an iron supplement without understanding why your iron is low may not provide a long-term solution.
How Can You Improve Your Iron Levels?
Eat More Iron-Rich Foods
Haem iron, found in animal foods, is generally absorbed more efficiently than non-haem iron from plant foods.
Good food sources include:
Lean red meat
Lamb
Beef
Liver
Chicken
Fish
Eggs
Legumes
Tofu
Spinach
Pumpkin seeds
Pair Iron With Vitamin C
Vitamin C helps improve the absorption of non-haem iron.
Adding foods such as kiwifruit, berries, citrus fruits or capsicum to meals can help your body absorb more iron from plant foods.
Be Mindful of Foods That Reduce Absorption
Tea, coffee and calcium-rich foods can reduce iron absorption when consumed alongside iron-rich meals or supplements.
Spacing these away from your iron supplement may improve absorption.
Iron Supplements
For many women, food alone is not enough to restore depleted iron stores.
Iron supplements can be an effective way to replenish iron, but the most appropriate type, dose and duration depend on your individual needs and should be discussed with your healthcare provider.
Looking at the Bigger Picture
Low iron is rarely just about iron.
Many women with depleted iron stores are also experiencing poor sleep, chronic stress, heavy periods, digestive symptoms, thyroid concerns or nutrient deficiencies.
Looking at these factors together often provides a much clearer understanding of why symptoms developed in the first place.
How Legacy Nutrition Can Help
If you've been told your blood tests are normal but you're still struggling with fatigue, brain fog, hair loss or low energy, it may be time to look a little deeper.
At Legacy Nutrition, I take a whole-person approach to understanding your health. Together we review your symptoms, nutrition, lifestyle, medical history and available blood tests to identify what may be contributing to your iron deficiency and ongoing fatigue.
From there, we develop a personalised plan to help restore your iron levels, support your overall health and get you feeling like yourself again.
Book your Clinical Case Assessment today and take the first step towards restoring your energy.
