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HDL42
Triglycerides180
ApoB110
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Ferritinmg/dL
TIBC (Total Iron-Binding Capacity)mg/dL
Transferrin Saturationmg/dL

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39 µg/dL low
0 from your result
lownormalhigh
10normal 59 to 159260
what this means

39 is low, just outside the range for serum iron.

this is the average reading · make it yours below

This one sits close to the edge. Not a problem today, but it is the band where small changes decide which way it goes, and where the rest of your panel starts to matter more than this number alone.

You are 20 µg/dL under the normal floor of 59. That reads low.

39 is low. That is below the normal range for serum iron. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

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Your BloodMarker report · Serum Iron

Serum Iron 39 µg/dL: Is That Low?

Not really. 39 µg/dL is just outside the normal range for serum iron.

But a number alone is only half the story. Your Ferritin, TIBC (Total Iron-Binding Capacity) and your risk factors decide how much it means. Tell it who you are.

Reviewed against NIH, WHO, ASH, Mayo Clinic, CDC guidelines · Last reviewed March 26, 2026

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Is Serum Iron 39 µg/dL Low, Normal, or High?

Serum Iron 39 µg/dL might be considered a low value, often indicating that the amount of iron circulating in your bloodstream is less than what is typically observed. This measurement can understandably spark feelings of worry or concern about your overall well-being.

It suggests your body might not have enough readily available iron to support its many vital functions. Understanding what this specific number means for you is the first step toward gaining clarity and peace of mind.

what this page cannot tell you

Hemoglobin levels combined with this marker can reveal underlying conditions that neither value shows on its own

This page has not been given your Hemoglobin, so that half of the picture is missing here. It is describing the average reader with Serum Iron, not you.

Read mine against my Hemoglobin →

A serum iron level of 39 µg/dL immediately indicates a significant depletion of iron available in the bloodstream, falling notably below the lower limit of the normal range (59-158 µg/dL).

This finding strongly suggests iron deficiency, often preceding the development of full-blown iron-deficiency anemia where red blood cell production is also affected. At this level, common culprits include chronic blood loss, such as from heavy menstrual periods, gastrointestinal bleeding (which might be subtle and unseen), or impaired iron absorption due to conditions like celiac disease or bariatric surgery.

Less commonly, insufficient dietary iron intake can also contribute, especially in vegetarians or vegans, or those with highly restricted diets. To pinpoint the underlying cause and assess the true extent of iron depletion, your doctor will almost certainly recommend further investigations.

These typically include a ferritin level to gauge your body’s iron stores, a Total Iron-Binding Capacity (TIBC) to see how readily your body can transport iron, and a complete blood count (CBC) to check for anemia.

While you might not yet experience severe symptoms like extreme fatigue or shortness of breath, a value of 39 µg/dL is a clear warning sign that requires prompt attention. It's important for patients to know that simply increasing dietary iron might not be enough to correct this deficit if malabsorption or ongoing blood loss is the primary issue, and treatment often involves addressing the root cause alongside supplementation.

How iron is absorbed and used in your body Small intestine Absorbs iron Bloodstream Carries iron to cells Bone marrow Makes hemoglobin Serum Iron reflects how much iron your body has stored or available
for your numbersThe section below is written for 39 against a general adult target. What 39 means for you depends on the rest of your lipids and your other risk factors. Your report starts from your whole picture, not one line.

Hidden Risk of Serum Iron 39 µg/dL

When your Serum Iron measures at 39 µg/dL, it can carry hidden risks that extend beyond just physical symptoms, often impacting your daily quality of life and emotional resilience. While not an emergency level, consistently low iron can subtly chip away at your energy and focus, leaving you feeling less like yourself.

This consistent feeling of fatigue or brain fog can be frustrating and contribute to feelings of anxiety about your health. The National Institutes of Health (NIH) emphasizes that even mild iron deficiency can affect cognitive function and mood, making everyday tasks feel more challenging.

what this page cannot tell you

Kidney function reflected by creatinine affects how this marker is processed and what your levels actually mean

This page has not been given your Creatinine, so that half of the picture is missing here. It is describing the average reader with Serum Iron, not you.

Read mine against my Creatinine →

A serum iron level of 39 µg/dL, significantly below the typical normal range, raises concerns for developing iron deficiency anemia. This occurs because insufficient iron impairs the bone marrow's ability to produce adequate hemoglobin, the protein in red blood cells responsible for oxygen transport.

Over time, this can lead to profound fatigue, weakness, and shortness of breath, even with minimal exertion, as tissues become starved for oxygen. More subtly, chronic low iron can impact cognitive function, immune system responsiveness, and even increase susceptibility to restless legs syndrome, affecting daily well-being and quality of life.

for your numbersThe risk below is the average one for this serum iron. Whether it applies to you depends on the rest of your panel, which the article has not been given. Add them and this stops describing strangers.
  • Persistent tiredness, making daily activities feel like a heavy burden.
  • Difficulty concentrating, impacting work, studies, or conversations.
  • Feelings of irritability or unexplained low mood.
  • Reduced stamina for even light physical activity.

This part is about the number

Everything below explains what raises Serum Iron. It cannot tell you which of them is yours.

Your test can. Every marker on it is read against every other one, which is where the answer actually lives.

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What Does a Serum Iron Level of 39 µg/dL Mean?

To truly understand what Serum Iron 39 µg/dL signifies, imagine iron as the essential 'fuel delivery trucks' that transport oxygen throughout your body. Your red blood cells are like these trucks, and they need a specific amount of iron to carry oxygen efficiently from your lungs to every cell, tissue, and organ.

Serum iron, specifically, is a measure of the iron that is currently circulating freely in your bloodstream, ready to be picked up by these trucks or stored for future use.

When your serum iron value is 39 µg/dL, it suggests that there aren't enough of these 'fuel delivery trucks' circulating with their cargo, or perhaps the supply of fuel itself is running low.

This can mean that the oxygen isn't being delivered as efficiently as it should be, potentially leading to the feelings of sluggishness, tiredness, or weakness that many people experiencing low iron levels describe.

It's a key indicator, providing a snapshot of the iron available for immediate use in your body, and a low level like this often prompts a deeper look into your body's overall iron stores.

The most plausible explanations for a serum iron reading around 39 µg/dL include chronic, slow blood loss, often from the gastrointestinal tract (e.g., undiagnosed ulcers, polyps, or inflammatory bowel disease), or inadequate dietary iron intake coupled with poor absorption.

Conditions like celiac disease or gastric bypass surgery can significantly hinder iron absorption. Heavy menstrual bleeding in women is another common culprit. Less likely but possible causes at this specific level could involve certain medications that interfere with iron absorption or utilization, or a less severe, early stage of chronic inflammation that subtly suppresses iron availability.

Your Serum Iron 39 means different things depending on your other markers

Serum Iron + Hemoglobin
Hemoglobin levels combined with this marker can reveal underlying conditions that neither value shows on its own
Serum Iron + Creatinine
Kidney function reflected by creatinine affects how this marker is processed and what your levels actually mean
Serum Iron + Fasting Blood Glucose
Blood sugar status interacts with this marker in ways that change the clinical significance of your result
The part one number cannot show
Your Serum Iron of 39 means different things depending on its companion markers.
Your full panel shows which story is yours.
See what is driving yours →

Lifestyle Changes for Serum Iron 39 µg/dL

Addressing a Serum Iron level of 39 µg/dL often involves exploring lifestyle adjustments beyond just what you eat. Prioritizing adequate rest is crucial; when your body isn't getting enough iron, it's working harder to do its basic functions, making sleep even more vital for recovery.

Gentle, regular physical activity, like walking or light stretching, can be beneficial for overall well-being and circulation, but it's important to listen to your body and avoid overexertion if you're feeling fatigued.

Managing stress through practices like meditation, deep breathing, or spending time in nature can also support your body’s ability to cope and heal. The Centers for Disease Control and Prevention (CDC) often highlights the importance of a balanced lifestyle for general health, and this extends to how your body manages essential nutrients like iron.

Ensuring you have a consistent sleep schedule and finding healthy ways to unwind can create a supportive environment for your body as it works to restore its iron balance.

With a serum iron level of 39 µg/dL, the immediate next step is a repeat iron panel including ferritin, total iron-binding capacity (TIBC), and transferrin saturation within 2-4 weeks to confirm the trend and assess iron stores.

Focus on increasing dietary iron through red meats, dark leafy greens, and fortified cereals, while simultaneously taking an oral ferrous sulfate supplement as prescribed. Track your energy levels daily and monitor for any signs of bleeding, such as changes in stool color.

If symptoms persist or worsen, a referral to a gastroenterologist for evaluation of potential blood loss is warranted.

for your numbersThis section lists every reason serum iron moves, because on its own the number cannot say which is yours. The rest of your panel and a few risk factors would cross most of them off in a sentence.
for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

Diet Changes for Serum Iron 39 µg/dL

When your Serum Iron registers 39 µg/dL, dietary adjustments become a significant part of supporting your body's iron needs. Focusing on iron-rich foods, both from animal and plant sources, and understanding how to maximize their absorption can make a meaningful difference.

Integrating foods high in Vitamin C with iron-rich meals can also significantly boost your body's ability to take in iron, as recommended by organizations like the World Health Organization (WHO), which stresses the importance of nutritional strategies in addressing iron deficiency.

  • Include lean red meat, poultry, and fish for readily absorbed (heme) iron.
  • Boost plant-based (non-heme) iron with lentils, spinach, beans, and fortified cereals.
  • Pair iron-rich foods with Vitamin C sources like oranges, bell peppers, and strawberries.
  • Consider limiting coffee, tea, and calcium-rich foods around iron-rich meals, as they can hinder absorption.
Iron-rich foods and absorption helpers Red meat Heme iron Spinach Non-heme iron Lentils Iron + fiber Citrus Boosts absorption Fortified cereal Added iron Pair iron-rich foods with vitamin C for better absorption
for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

Serum Iron 39 µg/dL in Men, Women, Elderly, and Kids

A Serum Iron value of 39 µg/dL is generally considered low across different groups, but the reasons behind this level can vary significantly depending on age, sex, and life stage.

For women, especially those of childbearing age, monthly menstruation can lead to regular iron loss, making them more susceptible to low iron levels. Pregnancy also significantly increases iron demands, as the body needs to support both the mother and the developing baby, and without adequate intake, iron levels can drop.

For children and adolescents, periods of rapid growth necessitate higher iron intake, and a level of 39 µg/dL could indicate that their growing bodies aren't getting enough to keep up.

In men and postmenopausal women, low iron levels are less commonly due to dietary intake alone and might prompt a deeper investigation into potential sources of iron loss, such as in the gastrointestinal tract.

The Mayo Clinic often underscores that while symptoms of low iron can be similar across demographics, the underlying causes must be explored specifically for each individual to ensure the most appropriate approach.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

Medicine Effects on Serum Iron 39 µg/dL

Understanding how various medications might influence your Serum Iron level of 39 µg/dL is an important aspect of your health picture. Some commonly used drugs can either interfere with the absorption of iron from your diet or, in some cases, even lead to subtle iron loss over time.

This interaction isn't always obvious, but it's a factor healthcare providers consider when evaluating low iron, as noted by groups like the American Society of Hematology.

  • Antacids or proton pump inhibitors (PPIs) can reduce stomach acid, impairing iron absorption.
  • Non-steroidal anti-inflammatory drugs (NSAIDs) may cause gastrointestinal bleeding, leading to iron loss.
  • Certain antibiotics can affect the gut microbiome, potentially impacting nutrient absorption.
  • Some medications used for chronic conditions might interfere with iron metabolism.
for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

When to Retest Serum Iron 39 µg/dL

After discussing a Serum Iron level of 39 µg/dL with a healthcare provider and starting any recommended adjustments, the question of when to repeat the test often arises. Repeating the test is a common and important step to track how your body is responding to changes in diet, lifestyle, or any other interventions.

It helps confirm whether your iron levels are improving and if the chosen approach is effective. The timing for a repeat test is not one-size-fits-all and is typically determined by your healthcare provider, who will consider the specific reasons for your low iron, your overall health, and how quickly they expect to see changes.

They might suggest retesting in a few weeks or a few months, depending on the individual circumstances. This follow-up ensures that your journey to balanced iron levels is being monitored appropriately and that any adjustments can be made along the way to support your well-being.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

Serum Iron 39 µg/dL — Frequently Asked Questions

A Serum Iron level of 39 µg/dL often suggests that your body's readily available iron supply is low. Common reasons for this can include insufficient dietary intake of iron, chronic blood loss (even small amounts not always visible, like from the digestive tract), increased iron demand (such as during rapid growth, pregnancy, or heavy menstruation), or issues with your body's ability to absorb iron from food due to certain medical conditions or medications. Your healthcare provider can help explore the specific cause for your situation.

A Serum Iron level of 39 µg/dL is quite low and can significantly impact how you feel daily. You might experience persistent fatigue or a lack of energy, even after a full night's sleep, making everyday tasks feel unusually demanding.

Other common feelings include difficulty concentrating, forgetfulness, general weakness, shortness of breath during light activity, or even an increased sense of irritability. These symptoms arise because your body needs enough iron to transport oxygen efficiently, and when levels are low, this process becomes less effective.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

While a Serum Iron level of 39 µg/dL is considered low and warrants attention, it's generally not an emergency requiring immediate medical intervention. However, it is a clear indicator that you should schedule an appointment with your healthcare provider to discuss this result.

They can assess your overall health, look for underlying causes, and recommend a personalized plan to help bring your iron levels back into a healthy range. Addressing low iron is important for your long-term health and quality of life.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

When to See a Doctor About Serum Iron 39 µg/dL

Discovering your Serum Iron is 39 µg/dL can naturally lead to feelings of uncertainty or concern, and it's precisely at this point that consulting a healthcare provider becomes crucial. This specific numerical value indicates a low iron level, suggesting your body might be struggling to maintain its vital functions effectively.

It's not just about the number itself, but what it represents for your overall health and how you feel day-to-day. A doctor can help you understand the full context of this result, considering your unique health history, any symptoms you might be experiencing, and other relevant lab tests.

They can identify the underlying reasons for your low iron, which could range from dietary factors to subtle blood loss or absorption issues, as recognized by organizations like the World Health Organization.

This personalized evaluation is essential to create an effective plan tailored specifically for you, focusing on safely and appropriately restoring your iron balance and improving your well-being. Don't let the worry linger; empower yourself by seeking professional guidance to unravel the mystery of your 39 µg/dL Serum Iron result.

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