You go to bed at a reasonable time, get a full night of sleep, and still wake up feeling exhausted.
If this has been happening for weeks or months, it may be worth looking a little deeper. While fatigue can have many causes, low iron is one that can sometimes be overlooked, especially when standard bloodwork appears normal.
Here is how iron can affect your energy, what your bloodwork may be telling you, and what iron deficiency treatment in Calgary at Aeon may look like.
Why Iron Matters for Your Energy
Iron helps your body make hemoglobin, a protein in red blood cells that carries oxygen to your muscles, brain and organs.
When your iron levels are low, your body may have a harder time delivering the oxygen your tissues need to function at their best.
Your body also stores extra iron in a protein called ferritin. One simple way to think about it is:
- Hemoglobin is the iron your body is actively using
- Ferritin is your stored iron reserve
This means your iron stores can start running low before you develop anemia.
Some common signs of low iron may include:
- Fatigue that does not improve with rest
- Brain fog or difficulty concentrating
- Shortness of breath with mild activity
- A racing or pounding heartbeat
- Feeling cold, especially in your hands and feet
- Brittle nails or increased hair shedding
- Pale skin
- Restless legs at night
Low Iron Symptoms Can Happen Before Anemia
Iron deficiency can happen slowly, which means you may start noticing symptoms before your bloodwork shows anemia. Your ferritin, or stored iron, can drop while your hemoglobin is still within the normal range. This is sometimes called iron deficiency without anemia.
That is why looking at more than one number can be helpful. Routine bloodwork does not always include ferritin, and even a result within the lab’s reference range may need to be considered alongside your symptoms and health history.
Research has also found that low iron stores may play a role in fatigue even when hemoglobin is normal [1]. Low iron is fairly common, too. Statistics Canada found that about 9% of Canadian women aged 20 to 49 had depleted iron stores [2].
You can learn more about testing and treatment on our Iron Infusion page
You may be at greater risk of low iron if you:
- Have heavy menstrual periods
- Are pregnant or recently postpartum
- Follow a vegetarian or vegan diet
- Donate blood frequently
- Participate in endurance sports
- Have a digestive condition that affects nutrient absorption
What Should You Do If You Think Your Iron Is Low?
The first step is usually bloodwork. An iron panel may look at several markers, including ferritin and hemoglobin, to better understand how much iron your body has available and how much it has stored. Looking at these results together, along with your symptoms and medical history, can provide a clearer picture than relying on one number alone. For many people, treatment begins with dietary changes or oral iron supplements.
However, oral iron is not the right fit for everyone. Some people experience side effects such as:
- Constipation
- Stomach discomfort
- Nausea
- Digestive upset
Others may have difficulty absorbing enough iron through the digestive system. If you have been taking iron supplements for several months without seeing much improvement in your bloodwork or energy, your care provider may discuss other options with you.
What About Iron Infusions?
Iron infusions deliver iron directly into your bloodstream through an IV, which allows it to bypass the digestive system.
At Aeon Future Health, our iron infusion program begins with a complimentary consultation. During this appointment, our team reviews your health history and recent bloodwork to help determine whether an iron infusion may be appropriate for you. Infusions take place in our IV lounge and are monitored by trained clinicians. Appointments typically last about 75 to 90 minutes. Iron infusions may not be covered by the Alberta Health Care Insurance Plan.
You can also read our guide on what to expect from an iron infusion in Calgary for a closer look at the process.
What If My Iron Levels Are Normal?
Fatigue does not always have one simple cause.
Other factors may include:
- Thyroid function
- Hormone changes
- Sleep quality
- Stress
- Nutrition
- Other underlying health concerns
If your iron levels look healthy but you are still struggling with ongoing fatigue, a more comprehensive assessment may help.
Our Health Assessment takes a broader look at your overall health. You can also read Why Am I Always Tired? for more information about other common causes of fatigue.
Frequently Asked Questions About Low Iron and Fatigue
Can Low Iron Make You Tired Even If You Are Not Anemic?
Yes.
Your ferritin, or stored iron, can be low even when your hemoglobin remains within the normal range. Research suggests that some people with low ferritin and normal hemoglobin may still experience fatigue, and symptoms may improve with appropriate iron treatment [1].
What Is a Normal Ferritin Level?
Ferritin reference ranges can vary between laboratories.
A result that falls within the normal range also needs to be considered alongside your symptoms, hemoglobin levels and overall health history. A qualified healthcare provider can help you understand what your results mean for you.
How Long Does It Take to Feel Better After an Iron Infusion?
Everyone responds differently.
Some people begin noticing improvements in their energy within a few weeks, while others may take longer. It is also possible to feel tired, achy or mildly flu-like for a day or two after an infusion.
Where Can I Find an Iron Deficiency Clinic in Calgary?
Aeon Future Health offers intravenous iron replacement treatments at our Beltline clinic on 10 Avenue SW in Calgary. Referrals may be accepted from family physicians, naturopaths, midwives and other healthcare practitioners. If you do not currently have a referral, our team can help explain your next steps.
Learn more about treatment on our iron infusion page.
Your Energy Deserves a Clearer Answer
If you are getting enough sleep but still feel exhausted, low iron may be worth ruling out.
Bloodwork can help show where your ferritin and hemoglobin levels stand and give you and your healthcare team more information about what to do next. Depending on your results, that may include dietary changes, oral supplements, an iron infusion or looking more closely at other possible causes of your fatigue.
Book Your Complimentary Consultation
Ready to better understand what your iron levels may be telling you?
Book an iron panel or a Health Assessment with the Aeon Future Health team to review your ferritin, hemoglobin and overall health. Book your complimentary consultation today
You can also call the clinic at 403-454-8477.
Dr. Jonathan Bastian, MD
References
1. Vaucher P, Druais PL, Waldvogel S, Favrat B. Effect of iron supplementation on fatigue in nonanemic menstruating women with low ferritin: a randomized controlled trial. CMAJ. 2012;184(11):1247-1254. https://www.cmaj.ca/content/184/11/1247
2. Cooper M, Greene-Finestone L, Lowell H, Levesque J, Robinson S. Iron sufficiency of Canadians. Health Reports. Statistics Canada; 2012. https://www150.statcan.gc.ca/n1/pub/82-003-x/2012004/article/11742-eng.htm
