You don't need an iron infusion if your ferritin is low in all cases.
Iron infusions for low ferritin are only usually needed ins severe cases when other treatments have failed to bring your ferritin levels back up.
Oral iron supplements are often used as the first line treatment for low ferritin levels, although if the oral supplements cause any severe stomach upset, fail to raise your ferritin levels or if your ferritin is critically low and requires rapid restoration, iron infusions are then often recommended and used.
When the doctor decides on an iron infusion for your low ferritin, it will depend on the thresholds, clinical context and procedure.
Iron infusions deliver iron directly into your bloodstream via a vein, bypassing the digestive tract, and can significantly improve iron stores in as little as 1 to 2 sessions.
The need for an IV iron infusion often also arises if you have any severe anemia, absorption disorders like Celiac disease or heavy ongoing blood loss.
And a ferritin level that is below 30 ng/mL is also commonly used as a clinical threshold ot consider intervention, although targets can also be higher or up to 75 to 100 ng/mL for specific conditions such as heart failure or restless leg syndrome.
You can recover from low ferritin as low ferritin is highly treatable and often involves adjusting your diet, taking supplements or even severe cases you may need intravenous IV iron.
Recovering from low ferritin starts with identifying the root cause and working with your doctor or healthcare provider to understand why the levels of ferritin are low.
Common causes of low ferritin include poor dietary absorption, heavy menstrual bleeding, gastrointestinal bleeding or even conditions such as celiac disease.
Doctors also often prescribe oral iron supplements like ferrous sulfate, ferrous gluconate, or even ferrous bisglycinate.
And even recent studies also show now that taking a lower dose pill of 45 mg every other day often improves absorption and reduces your stomach upset.
And although it's difficult to raise severely low ferritin with food alone, eating foods rich in iron also helps to maintain your iron stores.
You should focus on heme iron, which is easily absorbed from animal sources like red meat, chicken and seafood, or non heme iron from plant based foods like spinach, tofu and lentils.
You can also pair the non heme iron with Vitamin C to boost absorption, and avoid drinking coffee or tea when eating iron rich meals.
If the oral supplements cause any severe side effects, do not raise your ferritin levels or if the deficiency is severe, your doctor may then recommend IV or intravenous iron to restore your stores much more quickly.
It often takes 3 months to 6 months of consistent treatment to rebuild your iron reserves, you should also have your levels of ferritin rechecked by a doctor to confirm you reach a healthy baseline.
The reason why doctors often ignore low ferritin levels is because you can have low ferritin levels even when your hemoglobin is normal, which is a condition called iron deficiency without anemia.
Medical training focuses traditionally on anemia, which is when your red blood cells are compromised, but many doctors and practitioners still rely on standard Complete Blood Count or CBC tests, instead of checking for iron storage levels.
The ferritin in the body measure's the body's stored iron.
And when these stores of iron are low but your red blood cells are still functioning normally, your doctor might not view it as being an urgent or a severe issue.
Although having depleted iron reserves can still cause symptoms that can be debilitating, like extreme fatigue, brain fog, hair loss and restless leg syndrome.
Many labs also flag ferritin as "normal" if the ferritin sits above 10 or 15 ng/mL.
However, many specialists and optimal health guidelines also suggest that a ferritin level of at least 50 to 100 ng/mL is required for you to feel energetic and symptom-free.
And traditional medical education also emphasizes anemia or (low hemoglobin), which leads some doctors to treating iron deficiency only after the iron deficiency has progressed to the point in which red blood cell production is impacted.
Ferritin is also an "acute-phase reactant," meaning it can temporarily elevate due to chronic inflammation, illness, or infection.
A falsely elevated reading can cause a doctor to overlook a true iron deficiency unless they also order a transferrin saturation (TSAT) test.
The causes of low ferritin but not anemia include frequent blood donation, gastrointestinal GI blood loss, increased physiological demand, medications, impaired gut absorption, dietary inadequacy and heavy menstrual bleeding.
Heavy menstrual bleeding is the most common cause of low ferritin without anemia, in premenopausal women, where the iron is lost via menstruation outpaces dietary intake.
Consuming insufficient iron, which is common in vegetarians and vegans is also a common cause of low ferritin without anemia because plant based non heme iron is harder for your body to absorb.
And conditions like inflammatory bowel disease or IBD, celiac disease, or even prior bariatric surgery also inhibit your body's ability to absorb iron, which can lead to low ferritin levels but not being anemia.
Even chronic use of antacids like proton pump inhibitors lowers your stomach acid, which is also necessary to absorb iron properly and can lead to low ferritin levels.
Pregnancy, lactation, puberty, or rigorous endurance training also rapidly deplete iron reserves and slow, often unseen blood loss from conditions like stomach ulcers, hemorrhoids or colon polyps can cause low ferritin levels without anemia.
And regular blood donors also frequently deplete their stored iron, which can lead to low ferritin without being anemic.
When you have low ferritin, the low ferritin levels can make you feel dizzy, persistently fatigued, cause brain fog, sometimes hair loss, shortness of breath, heart palpitations and even restless legs.
These symptoms of low ferritin levels can occur even before your full iron deficiency anemia develops.
Iron in the body is crucial for energy production and oxygen delivery and cognitive function and depleted iron reserves also impact your body in several ways by causing constant exhaustion, cognitive issues, physical weakness, sensory changes, skin and hair changes, sleep disturbances and mood changes.
Constant exhaustion is the most common symptom of low ferritin, which involves a deep, heavy lack of energy that doesn't improve even after a full night's sleep.
Cognitive issues that can result from low ferritin can result in brain fog, poor concentration and difficulty focusing, and are very common issues with low ferritin as your brain's iron pathways are affected.
When your ferritin levels are low it can result in shortness of breath with little activity, lightheadedness, dizziness and a rapid or pounding heartbeat or palpitations as your heart works harder to circulate oxygen.
And sensory changes from low ferritin include frequent headaches, cold hands and feet, brittle nails and unusual cravings such as chewing ice also known as (pica).
Skin and hair changes from low ferritin levels include increased hair shedding, thinning or pale and sallow skin and a strong urge to move your legs at night also known as Restless Leg Syndrome and frequent night waking.
Mood changes from low ferritin include increased irritability, mood swings, anxiety or symptoms of depression.
Dangerously low ferritin levels are when your ferritin levels are below 15 ng/mL for adults.
When your ferritin levels are below 10 ng/mL your ferritin levels are considered to be severely depleted.
Ferritin in the body is a specialized protein, which safely stores iron inside of your cells and then releases it when the body needs it.
Measuring your body's blood ferritin levels also indicates your total iron reserves.
And having low ferritin levels also points to an iron deficiency like anemia, and high ferritin levels can indicate you have iron overload or systemic inflammation.
The reason why the ferritin levels matters in the body and why ferritin itself matters is because iron is vital to the body for producing red blood cells and transporting oxygen, although it can also be highly toxic in it's free state.
Ferritin also acts as the body's "iron storage closet," safely sequestering the mineral to prevent cellular damage while also keeping it available for essential bodily functions.
A ferritin blood test is used to measure the concentration of the ferritin protein in your blood to give your doctor an accurate picture of your body's stored iron.
And the ferritin blood test is often ordered alongside tests like a Complete Blood Count or CBC or Total Iron Binding Capacity or TIBC.
The typical ferritin reference ranges can vary slightly between each laboratory but are often the following reference ranges:
Men: Typically 20 to 500 nanograms per milliliter (ng/mL) (or up to 336 mcg/L depending on the lab)
Women: Typically 20 to 200 ng/mL (or 11 to 307 mcg/L)
Test results for ferritin levels below the standard above reference range mean that your iron reserves are depleted.
Depleted iron levels are most commonly caused by heavy menstrual bleeding, poor dietary iron absorption, or even pregnancy.
The symptoms of low iron levels include:
Restless leg syndrome.
Shortness of breath.
And unexplained fatigue and weakness.
Results higher than the expected ferritin ranges can indicate you have an accumulation of excess iron or it may even signal an underlying health issue.
Having elevated levels of ferritin can also be caused by conditions like Hemochromatosis, which is a genetic disorder that causes iron overload, chronic inflammation, liver disease or even alcohol misuse.
When your ferritin dips to dangerous levels, the body lacks the reserve it needs to produce hemoglobin, which results in symptoms like:
Chronic, severe fatigue and weakness.
Pale skin.
Dizziness or lightheadedness.
Headaches and brain fog.
Shortness of breath.
And fast or irregular heartbeat.
Key Details on the body's Ferritin Levels include the following:
Normal Ranges of ferritin: Standard reference ranges of ferritin typically fall between 20 to 200 ng/mL for women and 20 to 500 ng/mL for men.
Absolute Iron Deficiency: Any value under 12 ng/mL in children and 15 ng/mL in adults as absolute iron deficiency.
Many experts also now consider levels of ferritin under 30 ng/mL to indicate depleted stores.
"Normal" Labs Can Still Be Low: You can have "iron deficiency without anemia".
If your hemoglobin is normal but your ferritin is under 30 ng/mL, you may still experience severe symptoms.
Inflammation Caveat: Ferritin is an "acute-phase reactant," meaning it can temporarily rise during periods of infection, chronic inflammation, or illness.
In these cases, a "normal" ferritin reading can falsely mask severe iron deficiency.