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

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15 ng/mL low (iron deficient)
0 from your result
lownormalhighvery high
1normal 30 to 301580
what this means

15 is low (iron deficient), just outside the range for ferritin.

this is the average reading · make it yours below

reading as

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 15 ng/mL under the normal floor of 30. That reads low (iron deficient).

15 is low (iron deficient). That is below the normal range for ferritin. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

recheck in 12 weeks
Ferritin + Serum Iron

Ferritin shows storage, serum iron shows circulation. Together they reveal the full iron status picture.

Ferritin + TIBC

High TIBC with low ferritin is classic iron deficiency. Low TIBC suggests chronic disease instead. Different treatments.

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Your test has all of them on one page

Your BloodMarker report · Ferritin

Ferritin 15 ng/mL: Is That Low?

Not really. 15 ng/mL is just outside the normal range for ferritin.

But a number alone is only half the story. Your Serum Iron, 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 29, 2026

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Is Ferritin 15 ng/mL Low, Normal, or High?

Ferritin 15 ng/mL might be considered on the lower side for many individuals, suggesting that the body's stored iron reserves are quite diminished. This particular level indicates that the 'warehouse' for iron within your body is nearly empty, which can have a gradual, cumulative impact on overall well-being.

Over time, such low levels can influence various body functions beyond just feeling tired. Understanding what this specific ferritin level means for your long-term health is a crucial first step toward promoting sustained well-being and vitality.

what this page cannot tell you

Low ferritin confirms iron deficiency as the cause of anemia. This determines whether iron supplements alone will fix it.

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

Read mine against my Hemoglobin →

A ferritin level of 15 ng/mL is a clear indication that your body’s iron stores are significantly depleted, placing you well into the iron-deficient category. This value, half the normal lower limit of 30 ng/mL, signals that the body has used much of its stored iron and is likely struggling to maintain adequate iron for daily functions, even if full-blown anemia hasn't yet appeared on a routine blood count.

Common culprits for such a low ferritin reading include chronic blood loss, particularly from heavy menstrual periods in women, or subtle, ongoing gastrointestinal bleeding that might otherwise go unnoticed. Poor dietary intake of iron over time, coupled with high demand, can also contribute.

To properly understand the full picture, your clinician will typically order additional tests, such as a complete blood count (CBC) to check for anemia, a full iron panel (including serum iron, TIBC, and transferrin saturation), and may recommend investigating potential sources of blood loss.

What many patients don't realize is that while iron supplementation is key to recovery, rebuilding your body’s iron stores from a level of 15 ng/mL to a healthy range can take several months of consistent treatment, not just a few weeks, even once the underlying cause is identified and managed. This sustained effort is crucial to prevent a quick relapse once supplementation stops.

How iron is absorbed and used in your body Small intestine Absorbs iron Bloodstream Carries iron to cells Bone marrow Makes hemoglobin Ferritin reflects how much iron your body has stored or available
for your numbersThe section below is written for 15 against a general adult target. What 15 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 Ferritin 15 ng/mL

A ferritin level of 15 ng/mL, while not in the extreme single digits, points to a state where the body's readily available iron reserves are significantly depleted. This situation can have a gradual, cumulative impact on overall well-being, influencing more than just your energy levels over the long haul.

Thinking about the future, consistently low ferritin can lead to subtle but noticeable changes in how you feel and function daily. The National Institutes of Health (NIH) highlights that even without full-blown anemia, low iron stores can affect various bodily systems, leading to a long-term erosion of quality of life if not addressed.

This isn't about immediate crisis but rather a sustained drag on your vitality. Addressing low ferritin at this level helps to rebuild these crucial stores, potentially preventing more significant issues down the road and supporting a healthier, more energetic future.

It’s about ensuring your body has the fundamental building blocks it needs to thrive over the months and years to come, avoiding a persistent state of subtle underperformance that can become your new 'normal.'

what this page cannot tell you

Ferritin shows storage, serum iron shows circulation. Together they reveal the full iron status picture.

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

Read mine against my Serum Iron →

A ferritin level of 15 ng/mL signifies a significant depletion of iron stores, placing you at high risk for developing symptomatic iron deficiency anemia. This low level means your body has insufficient iron to produce adequate hemoglobin, the protein in red blood cells responsible for oxygen transport.

Consequently, you may experience profound fatigue, reduced cognitive function including poor concentration and memory, and impaired immune responses making you more susceptible to infections. In women of reproductive age, this can exacerbate menstrual blood loss, creating a vicious cycle.

Prolonged, unaddressed iron deficiency at this magnitude can also impact cardiac function due to the increased workload on the heart to compensate for reduced oxygen delivery.

for your numbersThe risk below is the average one for this ferritin. 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.

This part is about the number

Everything below explains what raises Ferritin. 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.

PDF or a photo of the printout · read in seconds

What Does a Ferritin Level of 15 ng/mL Mean?

Imagine your body's iron supply as a savings account, and ferritin is like the balance shown on your bank statement for that account. When your ferritin is at 15 ng/mL, it's like seeing a very low balance in your savings account.

It means you don't have much extra iron stored away for when your body needs it, similar to having just enough money for immediate expenses but little to fall back on in an emergency.

Iron is a vital mineral, playing a central role in making hemoglobin, which is the protein in your red blood cells that carries oxygen from your lungs to all parts of your body.

Without sufficient iron, your body struggles to produce enough healthy red blood cells, impacting how effectively oxygen is delivered to your tissues and organs. A level of 15 ng/mL indicates that these essential iron reserves are nearly empty.

While your body might still be making enough red blood cells for now, it's doing so without much backup. This condition, known as iron depletion, often precedes a more severe form of iron deficiency, which is iron deficiency anemia.

The Mayo Clinic emphasizes that even at this stage, the subtle lack of iron can affect energy production, cognitive function, and immune system strength over time. It's a signal that your body is relying on current iron intake rather than stored reserves, which isn't sustainable for long-term optimal health.

A ferritin value of 15 ng/mL strongly suggests inadequate iron intake, chronic blood loss, or poor iron absorption. The most common culprits include a persistently low dietary intake of iron-rich foods, particularly in vegetarians or vegans who may struggle to obtain sufficient heme iron, or individuals with eating disorders.

Significant occult gastrointestinal blood loss, such as from undiagnosed ulcers, inflammatory bowel disease, or even certain medications like NSAIDs taken regularly, is another primary driver. Malabsorption issues stemming from celiac disease or previous gastric surgery can also lead to such profound iron depletion.

Your Ferritin 15 means different things depending on your other markers

Ferritin + Hemoglobin
Low ferritin confirms iron deficiency as the cause of anemia. This determines whether iron supplements alone will fix it.
Ferritin + Serum Iron
Ferritin shows storage, serum iron shows circulation. Together they reveal the full iron status picture.
Ferritin + TIBC
High TIBC with low ferritin is classic iron deficiency. Low TIBC suggests chronic disease instead. Different treatments.
for your numbersThis section lists every reason ferritin 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.

Lifestyle Changes for Ferritin 15 ng/mL

Beyond what you eat, your daily routines and habits play a significant role in your overall health and can indirectly support your body's efforts to manage iron stores. For someone with a ferritin level of 15 ng/mL, thinking about long-term well-being means adopting lifestyle practices that help your body function optimally.

Regular, moderate physical activity, for instance, can improve overall circulation and vitality. However, it's important to balance exercise with rest, as over-exertion without adequate recovery can sometimes place extra demands on the body.

Prioritizing consistent, high-quality sleep is another powerful tool. Sleep is when your body repairs itself, including processes that help maintain healthy blood components and overall energy levels. Chronic lack of sleep can contribute to fatigue, masking or worsening the symptoms associated with low iron stores over the long term.

Stress management techniques are also crucial; persistent stress can impact various bodily systems, potentially affecting nutrient absorption and overall physiological balance. Engaging in hobbies, mindfulness, or spending time in nature can help reduce stress, fostering a more conducive environment for your body to restore its reserves.

These consistent, positive lifestyle choices, while not directly increasing iron, create a foundation of health that helps your body use its resources more efficiently and supports a healthier trajectory for your iron status over months and years.

With a ferritin level of 15 ng/mL, prioritize a retest within 4-6 weeks after initiating an iron supplement, preferably ferrous sulfate or gluconate, taken on an empty stomach with vitamin C to enhance absorption.

Concurrently, significantly increase dietary intake of iron-rich foods like red meat, liver, lentils, and fortified cereals. Tracking symptoms of fatigue and pallor is crucial. If blood loss is suspected or symptoms persist despite supplementation, consultation with a gastroenterologist or hematologist is warranted to investigate the underlying cause, which may involve endoscopic evaluation.

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.
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 Ferritin 15 ng/mL

When your ferritin level is 15 ng/mL, focusing on dietary strategies to replenish iron stores is a key part of a long-term plan. This isn't about a quick fix but rather building sustainable eating habits that consistently provide your body with the iron it needs, alongside elements that enhance its absorption.

Dietary iron comes in two main forms: heme iron, found in animal products, and non-heme iron, found in plants and some animal products. Heme iron is more easily absorbed by the body.

To effectively increase your iron stores over time, it's often beneficial to incorporate a variety of iron-rich foods into your daily meals, thinking about how each meal contributes to your overall iron intake.

The World Health Organization (WHO) highlights the importance of dietary diversity in preventing iron deficiency globally, emphasizing that consistent nutritional choices are vital for long-term health outcomes. Aim to make these dietary adjustments a regular part of your routine to slowly but steadily rebuild your iron reserves, improving your energy and vitality over the months ahead.

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.

Ferritin 15 ng/mL in Men, Women, Elderly, and Kids

Ferritin levels can vary significantly across different demographics, and a reading of 15 ng/mL holds distinct implications depending on a person's age and biological sex. For adult women who are menstruating, a ferritin level of 15 ng/mL is particularly concerning because monthly blood loss leads to ongoing iron depletion.

Over years, this can result in chronic fatigue and a diminished sense of well-being. The Centers for Disease Control and Prevention (CDC) often notes that iron deficiency is more prevalent in women of childbearing age due to these physiological factors.

In pregnant women, adequate iron is crucial for both mother and baby, and 15 ng/mL would be considered very low, potentially impacting fetal development and maternal health over the course of the pregnancy.

For adult men and postmenopausal women, who typically have higher iron stores, a level of 15 ng/mL is unusual and might prompt a deeper look into potential sources of chronic blood loss or malabsorption that have led to such significant depletion over time.

For children and adolescents, especially during periods of rapid growth, iron demands are high. A ferritin level of 15 ng/mL in these age groups could affect cognitive development, school performance, and energy levels over their formative years.

The long-term trajectory for someone at this specific ferritin level will depend heavily on these demographic factors and the underlying reasons for the low iron stores, requiring a tailored approach to understand and address the situation for sustained health across the lifespan.

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 Ferritin 15 ng/mL

Certain medications can influence your body's iron levels and absorption over time, potentially contributing to or worsening a ferritin level of 15 ng/mL. Understanding these potential interactions is crucial for a long-term perspective on managing your iron status.

Some medications can directly interfere with how your body takes in dietary iron, while others might lead to subtle blood loss that, over months or years, depletes your iron reserves.

It's not always an immediate effect but a cumulative one that can silently impact your ferritin levels. Always discuss your full medication list with a healthcare provider to understand any potential long-term effects on nutrient absorption or blood health.

The American Society of Hematology (ASH) underscores the importance of reviewing all medications when evaluating persistent iron deficiency, as even common over-the-counter drugs can play a role in long-term iron balance.

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 Ferritin 15 ng/mL

When your ferritin level is 15 ng/mL, repeating the test becomes an important part of a long-term strategy to monitor your body's iron stores. This isn't just about getting another number; it's about tracking the trajectory of your iron levels over months and years and assessing the effectiveness of any changes you've made.

The timing for a repeat test is usually determined by a healthcare provider, often based on the initial assessment, any interventions started, and your overall health picture. Typically, if dietary adjustments or other strategies are initiated, a follow-up ferritin test might be recommended several months later.

This allows enough time for these changes to potentially influence your iron stores. It takes time to rebuild these reserves; it's not an overnight process, especially from a starting point of 15 ng/mL.

A follow-up test helps confirm if the interventions are working as expected and if your ferritin is slowly climbing towards a more optimal range, indicating that your 'iron savings account' is gradually being replenished.

Regular monitoring helps ensure that your long-term efforts are leading to sustained improvement in your iron status and overall vitality, preventing a return to low levels.

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.

Ferritin 15 ng/mL — Frequently Asked Questions

A ferritin level of 15 ng/mL indicates significantly depleted iron stores, which can lead to persistent, subtle fatigue rather than sudden exhaustion. Over time, you might notice a gradual decline in your usual energy levels, feeling more tired than normal or struggling with tasks that used to be easy.

This sustained lower energy can impact your productivity, mood, and overall quality of life, often making you feel like you're constantly running on a low battery.

A ferritin level of 15 ng/mL is quite low and generally indicates that your body's iron stores are significantly depleted. While minor fluctuations in ferritin can occur, this level typically does not improve substantially on its own without targeted attention.

It usually requires consistent dietary changes and sometimes other strategies to slowly rebuild these reserves over several months, rather than resolving spontaneously.

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.

If a ferritin level of 15 ng/mL remains unaddressed over the long term, it often signifies a persistent state of iron depletion. This can gradually lead to iron deficiency anemia, a condition where your body doesn't produce enough healthy red blood cells.

The cumulative effects can include chronic fatigue, diminished cognitive function, weakened immune response, and poorer exercise capacity, ultimately affecting your sustained health and vitality over months and years.

When to See a Doctor About Ferritin 15 ng/mL

Understanding your ferritin level is an important part of managing your long-term health, and a reading of 15 ng/mL certainly warrants a conversation with a healthcare provider. This specific level suggests that your body's iron reserves are quite low, and while this article provides general information, only a medical professional can interpret your results within the context of your complete health history, symptoms, and other blood tests.

If you've received a ferritin result of 15 ng/mL, it's a clear signal to consult with your doctor. They can help identify the underlying reasons for such low iron stores, which could range from dietary intake to absorption issues or even subtle blood loss over time.

Your doctor can also discuss appropriate strategies to help replenish your iron, whether through specific dietary guidance, targeted supplementation, or other interventions. This consultation is key to developing a personalized long-term plan, ensuring that you take the most effective steps to improve your iron status and support your overall well-being for the months and years to come.

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You have just spent a few minutes reading a page written for a number. Upload your whole test and you get the same thing written for your body: every marker read against every other, in the order they should be fixed, as something you read rather than a dashboard you have to decode.

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