Sometimes iron deficiency is thought to be a childhood issue or something linked to pregnancy. But it’s one of the most common – yet overlooked! – deficiencies in adults. This is why iron and other high-dose nutrients are offered as bespoke intravenous therapy from our Toronto IV Lounge.
Many people live with low iron levels, and it’s assumed their symptoms are caused by chronic stress, aging, and hormonal shifts. From a functional medicine perspective, an iron shortage is not just read on a lab report – it’s a sign of bodily imbalance that can negatively impact energy, cognitive function, immunity, and long-term wellness.
Iron has several functions in the body, including oxygen transport, cellular energy production, immune defenses and optimizing neurological health. It also forms hemoglobin, allowing red blood cells to deliver oxygen efficiently to your tissues. Iron is also needed for mitochondrial functions, muscle function and metabolism, and thyroid hormone activities.
Truly, this mineral has a busy to-do list! But when iron stores are inadequate, the body has to function with shortages in both oxygen and energy. This can lead to fatigue, weakness, hair thinning, shortness of breath, brittle nails, anxiety, poor concentration, frequent infections, and other symptoms. And, as these indicators can overlap with other chronic conditions, iron deficiency is often ignored.
This article from the Toronto Functional Medicine Centre (TFMC) sheds light on the mineral’s role in healthy longevity; how functional medicine diagnoses and comprehends the root cause of this deficiency; personalized health strategies to note; and what our clinicians can offer you for health optimization.
Iron’s role in healthy longevity
An iron deficit can impact a person’s functioning as they age. Healthy longevity is about maintaining vitality, resilience and independence into the golden years – but when an iron deficiency is chronic, it can affect the body by:
- Increasing weakness, fatigue, and cellular aging;
- Impairing mental clarity, focus, and cognitive function;
- Weakening immune function and resilience;
- Contributing to physical frailty by reducing muscle function.
Insufficient iron can compromise cellular health as you age. The body can also have trouble compensating for its lack of iron – and in some cases, iron deficiency anemia can develop. This type of anemia reduces the number of healthy red blood cells in the body, preventing blood from being carried through your whole physique. Identifying iron deficiency early – before anemia develops! – allows for early intervention before anemia forms.
Diagnosing and testing for treatment and prevention
It’s important to understand why health issues are happening in a patient. An iron deficiency can develop prior to anemia forming, so early detection is beneficial, especially for investigating the possible root causes of an iron deficiency. But these tests cannot always be accessed at Western medicine practices – conventional testing often focuses on only hemoglobin, which can read ‘normal’ when iron stores are already depleted.
When you opt into functional medicine testing, biomarkers are inspected for a comprehensive view; this allows functional practitioners to determine how a body is dealing with high or low iron. This broad analysis helps differentiate an actual deficiency from inflammation-related iron dysregulation, while preventing unnecessary supplementation. Ferritin, a marker of stored iron amounts, may be measured because it’s a sensitive indicator for early iron deficiency. Low or borderline ferritin levels can influence quality of life, metabolic health, and cognitive performance – even without anemia.
Labs are not the only thing used to diagnose iron deficiency. Functional practitioners (i.e. naturopathic doctors) review patterns that suggest iron imbalance, which may include a grouping of symptoms that combine persistent fatigue with sufficient sleep; brain fog; brittle nails; hair loss; frequent infections; digestive system issues (which can suggest malabsorption), etc. Diagnosis also takes medication use, daily diet, inflammation, and hormonal health into consideration, especially for assessing risks.
What causes iron deficiency?
Functional testing helps clinicians become further aware of the root causes of deficiencies, like iron. Some common iron shortage causes might include: Heavy bleeding during periods; hormonal imbalances; low stomach acid; gut dysbiosis; chronic inflammation; restrictive diets; nutrient imbalances involving copper, vitamin A or B-complex vitamins. When the root cause is understood and addressed, it can help alleviate symptoms and support disease prevention.
Functional medicine and IV therapy treatments to note
So, after testing and diagnosis is done, what would be recommended by a functional provider? Instead of relying on supplementation alone, a combination of therapies would be advised for restoring balance and nutritional needs. We list some examples below, but note that some of these suggestions may or may not apply to your condition; functional medicine strategies are meant to be customized.
- Dietary modifications: Iron-rich foods can be added to your diet; these may include eating certain meats and protein (i.e. lamb, eggs), legumes, spinach, quinoa, and oats.
- Anti-inflammatory strategies: Inflammation can affect how iron is metabolized, even ‘trapping’ iron in storage. The source of inflammation may need to be targeted, and this may involve pairing iron-rich foods with vitamin C, removing processed, sugar-ladened foods, improving sleep, and taking probiotics to reduce gut inflammation.
- Personalized targeted supplements: Treating iron deficits is not a one-size-fits-all model – for example, some people have malabsorption issues, others don’t. Tailored doses of iron supplements can prevent overload in the body. And – if you have other vitamin deficiencies – iron can be potentially paired with other nutrients, like vitamin A. You can book a session at the TFMC for more details about customizing supplements.
- Vitamin IV drip therapy: Intravenous therapy can be administered for adjunct care at the TFMC. Under professional supervision, IV fluids are directly inserted into your bloodstream for immediate use. When you ingest tablets or capsules, the doses of these oral supplements can be diminished from digestive enzymes, especially if your digestive system is compromised. Getting iron IV therapy guarantees that you absorb the full dose of nutrients.
Overall, this deficiency is common in adults, yet it’s frequently misunderstood. From a functional medicine perspective, it’s not just about preventing or treating anemia – it’s about optimizing energy levels, cognition, immune function, and healthy longevity. So, are you concerned about your iron levels? At the TFMC, we can help with identifying symptoms while using comprehensive testing tools. Contact us for a proactive approach in restoring your nutrient levels, such as the role of IV therapy in Toronto for lead poisoning.
Reinvigorate your wellness in our IV Lounge
When was the last time you understood what your body needs to healthily improve? Enhancing immunity, brain function, and your digestive system could go a long way in daily functioning, especially for sustaining energy production. At the Toronto Functional Medicine Centre, a variety of wellness therapies can be adapted for your biology.
Our testing services include urine, hair tissue mineral analyses, and blood tests. We can test for microscopic details regarding gut health, hormones, toxin exposures and brain health, and this information is used to tailor therapeutic treatments. Custom health care can contribute to preventing or delaying disease formation, which can positively impact long-term health outcomes. Examples of personalized therapies include Western and naturopathic medicine, herbal remedies, Chinese medicine (acupuncture), intramuscular vitamin injections, and IV therapy treatments.
Our clinicians customize IV drip therapies with the principles of integrative functional medicine – this means that IV fluids are dosed exclusively for your body. We administer intravenous therapy in our IV Lounge, and prescriptions can be provided for high-dose vitamin C, a variety of amino acids (i.e. glutamic acid), glutathione, zinc sulfate, NAD+ (nicotinamide adenine dinucleotide) and more. The TFMC shares clinic space with Supernatural Yorkville, and due to this partnership, our patients can access additional tools, such as cryotherapy, compression and contrast treatments, lymphatic drainage, frequency meditation with the RE:SET chair, and light pod therapy. Come explore our services today!
If this article resonated with you, please share it with someone who might benefit from our services! Let’s begin customizing your IV therapy at the Toronto Functional Medicine Centre – reach our clinic today to become a new patient.
Disclaimer: The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. You should always consult with a health care practitioner before relying on any information in this article or on this website. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of information you have read from the Toronto Functional Medicine Centre website or other affiliate media.
References
American Society of Hematology. “Iron-Deficiency Anemia.” Hematology.org, American Society of Hematology, https://www.hematology.org/education/patients/anemia/iron-deficiency. Accessed 30 Dec. 2025.
Cacoub P, Choukroun G, Cohen-Solal A, Luporsi E, Peyrin-Biroulet L, Peoc’h K, Andrieu V, Lasocki S, Puy H, Trochu JN. Iron deficiency screening is a key issue in chronic inflammatory diseases: A call to action. J Intern Med. 2022 Oct;292(4):542-556. doi: 10.1111/joim.13503. Epub 2022 May 3. PMID: 35466452; PMCID: PMC9544998.
Daru J, Colman K, Stanworth SJ, De La Salle B, Wood EM, Pasricha SR. Serum ferritin as an indicator of iron status: what do we need to know? Am J Clin Nutr. 2017 Dec;106(Suppl 6):1634S-1639S. doi: 10.3945/ajcn.117.155960. Epub 2017 Oct 25. PMID: 29070560; PMCID: PMC5701723.
Fertrin KY. Diagnosis and management of iron deficiency in chronic inflammatory conditions (CIC): is too little iron making your patient sick? Hematology Am Soc Hematol Educ Program. 2020 Dec 4;2020(1):478-486. doi: 10.1182/hematology.2020000132. PMID: 33275757; PMCID: PMC7727593.
Ganz T, Nemeth E. Iron sequestration and anemia of inflammation. Semin Hematol. 2009 Oct;46(4):387-93. doi: 10.1053/j.seminhematol.2009.06.001. PMID: 19786207; PMCID: PMC2755591.
Kylee Martens, Thomas G. DeLoughery; Sex, lies, and iron deficiency: a call to change ferritin reference ranges. Hematology Am Soc Hematol Educ Program 2023; 2023 (1): 617–621. doi: https://doi.org/10.1182/hematology.2023000494
Soppi ET. Iron deficiency without anemia – a clinical challenge. Clin Case Rep. 2018 Apr 17;6(6):1082-1086. doi: 10.1002/ccr3.1529. PMID: 29881569; PMCID: PMC5986027.
Original article "Toronto Functional Medicine Centre – (416) 968-6961" first appeared in the Toronto Functional Medicine Centre website.
