How to Increase Ferritin Levels Safely and Effectively

WHAT IS FERRITIN?

Ferritin is the primary protein responsible for storing iron in a safe, non-toxic form within the body. This stored iron helps protect the body when dietary intake or absorption can’t keep up with demand.

Blood Serum Ferritin is used to measure total body iron stores, but ferritin is primarily stored in liver cells. There is also a lot of ferritin in bone marrow, where it supports formation of new red blood cells, and in the spleen, which recycles iron from old red blood cells. Ferritin and myoglobin in muscle tissue help store oxygen and iron.

WHY AVOID LOW FERRITIN

A lower than optimal ferritin level means less than optimal levels of iron, red blood cells, and oxygenation. Ferritin allows your body to regulate iron levels, helping to smooth out and reduce the effect of periods of low iron intake.

Once you are low in ferritin, you are already at risk of having episodes of reduced muscle power, stamina, and mental energy.. If you get used to living with a chronically sub-par level of ferritin, you are getting used to inconsistent levels of vigor and operating below your cognitive and physical potential.

Periods of increased iron demand can be especially challenging when ferritin levels are low. Examples include menstruation, pregnancy, and times of intense mental or physical effort.

The body conserves iron as ferritin when it has all it needs and pulls it out to form hemoglobin or red blood cells when it doesn’t. Since ferritin helps the body to provide a consistent and dependable source of iron, being low can impact the body and create symptoms.

SYMPTOMS OF LOW FERRITIN

Symptoms vary but are wide ranging. Even low to normal ferritin iron levels can produce symptoms related to:

Brain drain.

Difficulty concentrating, poor focus, confusion
Low, listless mood, grumpiness
Headaches - more frequent or more intense. May have ringing in head.
Feeling of running on adrenaline (tired and wired)

Mouth.

Canker sores
Cracks at the corners of lips
Tongue can feel sore, swollen (easy to bite), or look smooth
Lack of appetite, food tastes different, or cravings for ice/pica

Hair.

Texture can be dry, dull, rough
Weak or brittle, snaps when brushed
Hair is thinning or falling out

Nails.

Thin or brittle
Flattened, even spoon shaped in extreme cases
Nail beds, palms of hands may lack any pinkness

Skin.

Dryness
Easy to bruise, slow to heal
Pallor. Mucus membranes normally pink may be white (inner eye lid, lip). Medium skin may look green, olive, sallow. Those with more melanin may appear ashy.

Fatigue and low vitality.

Extreme tiredness, legs feel heavy, hard to get moving, go up stairs
Mental fatigue, inability to complete tasks
Dizziness/faintness
Poor sleep
Immunity low, more colds and flus

Deficient blood.

Feel chillier than others at same temperature
Hands and feet cold to the touch
Muscle cramps, restless leg syndrome
Dark circles under the eyes

Exercise is more difficult.

Decreased ability to exercise, weakness
Shortness of breath when exercising
Chest pain during exercise, heart palpitations, rapid pulse

WHY RAISE IRON AND FERRITIN LEVELS

It might turn around a downward cycle of subtle symptoms.
Instead of one clear symptom, people may have a cluster of milder symptoms, such as mild headaches, split ends, cold hands, or a general lack of enthusiasm about going outside or being active because they feel chilly, lethargic, or grumpy. Improving iron status may help restore energy, confidence, and mental clarity.

Many people notice improved energy and focus.
Ferritin levels in the middle to upper range of normal are often associated with better stamina, concentration, and overall vitality compared to levels at the low end of normal.

Noticing how the body responds can be helpful.
Some tissues that turn over rapidly, including skin cells and the cells in our mouths, may show the effect of low ferritin early on. Even if you are not sure if your dry skin or canker sores are connected to iron deficiency or low ferritin, it is safe to check what happens if you increase your ferritin. It is safe to supplement to see if it helps.

Hair thinning is a common motivator to investigate ferritin.
Anecdotal reports from midwives and obstetricians about hair fall among patients with low-normal ferritin levels were confirmed by a 2023 clinical study. Women with ferritin levels within the acceptable, non-anemic range were tracked. Non-androgenic alopecia, or hair thinning, was reported more in those with lower ferritin levels. Effects were evident below 30 and worse at lower levels.

TESTING FERRITIN LEVELS

There are three stages of iron deficiency.

First, ferritin levels begin to drop as iron stores are depleted.
Next, red blood cells may become smaller and paler, reflected in changes to hematocrit and related markers.
Finally, hemoglobin levels decline, and anemia can develop.

An iron deficiency can be diagnosed and corrected in the early stages, but only if you check your ferritin status. It is best if ferritin and potentially hematocrit are included in your iron panel since hemoglobin is the last marker to show a decrease. Hemoglobin is usually the last marker to change, meaning iron deficiency is often only detected once symptoms have become more pronounced.

These markers recover in reverse order. Hemoglobin and hematocrit usually improve before ferritin, which rises last once iron stores are replenished.

It is also much easier to regularly take smaller doses of iron to keep levels up. Taking large amounts of iron can be uncomfortable. For these reasons, people looking to maintain their ferritin in the middle to upper end of the healthy range should take action early, or will need to be patient.

HOW TO RAISE FERRITIN LEVELS

Strategies that raise iron will raise ferritin eventually. Consume more iron by supplementing and adding iron to your diet. Improve your ability to absorb iron by tweaking your lifestyle and eating habits and understand how they impact your iron uptake. Also look at what may be causing increased iron demand or iron loss, some may be controllable factors.

DIET

If you’re iron deficient, everything you eat matters
Aim for 5 mg iron plus vitamin C at every meal and for 2 mg iron plus vitamin C at every snack.
Be aware that even with three iron-rich meals and one to two iron-rich snacks per day, meeting daily iron needs on paper, supplementation may still be needed to raise iron and ferritin levels.

Here’s why food that appears to provide 20 mg of iron may not actually deliver it.

IRON CONTENT IS NOT EQUAL TO IRON POTENTIAL

A food’s listed or “known” iron content doesn’t always reflect how much iron the body actually absorbs.
This is especially true for vegetarian iron sources and for food eaten with other food
Food compound and nutrient interactions strongly limit iron uptake
Plant foods have many anti-nutrients that bind to iron or block iron absorption
For example, spinach contains a lot of iron, but the iron in spinach has very low bioavailability, with only about 2% to 6% actually absorbed by the body.

MEAL MISTAKES

The worst way to start the day? Potentially, a spinach omelette with whole grain toast and a cup of tea with milk. The total iron content should come to about 5 mg, our goal, but the actual bioavailable iron is likely around (2%–5%) or 0.05 mg.

Effect of Inhibitors in This Meal

Spinach (Oxalates): Spinach is rich in iron but also contains oxalates (and phytates), which bind to iron, making most of it useless to the body (as little as 2% absorption).
Black Tea (Tannins/Polyphenols): Tannins in black tea are potent inhibitors that can reduce non-heme iron absorption by up to 50–60%.
Cheese/Milk (Calcium): High calcium content inhibits both non-heme and heme iron absorption.
Egg Whites (Ovotransferrin): While egg yolks contain phosvitin, egg whites contain ovotransferrin, which also binds to iron.
Whole Grain Toast (Phytates): Phytates (phytic acid) in whole grains bind to minerals, creating insoluble complexes that cannot be absorbed.

Inhibitors (oxalates, tannins, calcium, and phosvitin) in these foods reduce the absorption of iron not only from the foods eaten at breakfast, but can even negate the benefits of iron supplements taken around the same time.

Since the body’s capacity to use iron is highest early in the day, this can be a serious setback to raising one’s ferritin levels.

To avoid this, take a delay-release iron, or take a ferritin supplement, since ferritin is not inhibited by these compounds the way that iron salts, iron compounds, or iron chelates are.

WHAT TO EAT

Prioritize heme (animal-based) iron, which is absorbed more efficiently than plant iron. If tolerated, foods like lamb liver (3.5 oz provides up to ~12 mg of iron), other organ meats, red meat, dark poultry, dark fish, and shellfish such as oysters can make it easier to meet iron needs through food.
Eat sprouted lentils. A 2020 study found iron absorption from sprouted lentils was 2.8 x that of boiled dry lentils, because sprouting destroys the phytates in lentils that block iron absorption. One cup of sprouted lentils provides approximately 6.5mg of iron, about 1/3 of your daily needs, and about as much as 4 oz of beef liver!
Include iron-fortified products, including cereals, pastas, breads and black olives
Reduce coffee and black/green tea intake to one cup daily, at least 2 hours after breakfast. Non-tea herb and fruit infusions (such as mint or lemon ginger) are fine
Use iron-rich plant foods, like beans, lentils, quinoa, chickpeas, and leafy greens, as value-added ways to get fiber, instead of using fiber supplements. If you can soak and sprout your seeds, nuts, grains and pulses, they will provide significantly more iron and help raise ferritin.
Add small amounts of blackstrap molasses as a natural sweetener and supplemental source of iron.

PLANT-BASED IRON MEAL SUGGESTIONS

Start the day with a sprouted iron-fortified cereal (like sprouted oats). Top with hemp seeds or pumpkin seeds, ideally sprouted. Incorporate chopped prunes or dried apricots for more iron. Eat with a source of vitamin C, like raspberries, to convert plant iron to usable form. The use of sprouted grains and the addition of Vitamin C-rich raspberries maximizes absorption.

Try snacking on pumpkin seeds & dark chocolate along with a kiwi, or hummus with tahini and lemon, or edamame and pepper spears and black olives

How Iron Supplements Support Ferritin Levels

Ferritin+ is a form of iron designed to support ferritin levels, providing 20 mg of iron per capsule, an amount commonly used for daily supplementation. This form of iron follows a different absorption pathway than standard iron salts and does not rely on stomach acid or strong digestion for uptake.

As a result, it is less affected by common dietary inhibitors such as phytates, tannins, and oxalates, and it does not compete with minerals like calcium. As ferritin levels increase, iron status typically improves as well. Ferritin+ is designed for gradual release, which supports the body’s ability to use iron efficiently over time. Because the iron is non-heme, the body can regulate its absorption, taking up what it needs while limiting excess.

Taking Iron With Food

Taking iron with food can help reduce nausea, although most forms of iron are absorbed more efficiently on an empty stomach, as many foods and nutrients can interfere with absorption. For this reason, standard iron supplements are often best taken away from meals that contain inhibitors such as calcium, magnesium, antacids, or high-fiber foods.

Ferritin+, however, does not compete with minerals like calcium and is not inhibited by phytates, tannins, or oxalates in food, allowing it to be taken with meals if needed. This form of iron is also absorbed without requiring stomach acid or strong digestion, which may be helpful for those who use antacids. In some cases, taking iron every other day rather than daily may further improve absorption and reduce side effects, particularly at higher doses.

Ferritin Dosing and Safety Considerations

If you suspect your ferritin or iron is low, and you are independently choosing to supplement, take one capsule (the 20 mg dose) daily.

It is fine to try it for a couple of months and then evaluate the effects. It is considered safe to take up to 45 mg of iron/ferritin daily long term without knowing one’s ferritin or iron status.

Higher daily amounts may also be appropriate when recommended by a healthcare professional. If your doctor or pharmacist advises a higher intake, such as 60 mg daily to address deficiency or anemia, this can be achieved by taking three capsules of Ferritin+, which are designed for good absorption.

If You’re Anemic Or Severely Iron Deficient

If you are anemic or very deficient, progress is typically monitored every 6–12 weeks during supplementation, using bloodwork (ferritin, serum iron, transferrin saturation, CBC) to tailor dosing. If you need to raise your iron level quickly or bring ferritin up a large amount in a short amount of time, your clinician may offer supervised IV iron therapy.

Iron infusions are generally offered to those with significantly low stores who have not tolerated oral iron in the past. Because iron is most often prescribed as a large dose of a single form of iron (ie: 325 mg ferrous sulfate tablet), a history of poor tolerance is common.

A better way to raise ferritin or iron levels fast is to take advantage of all the different iron absorption pathways in your body. To do this, split your total daily intake between different forms of iron, using an iron salt (a ferrous gluconate liquid is a great choice), a heme iron (from meat or a heme supplement), and ferritin (Ferritin+). All use different routes into your blood and do not compete.

Once you are out of the danger zone, you will no longer require a large dose, and your doctor may suggest you stop taking iron. If so, do stop taking prescription-level doses such as 60 mg daily. If you are afraid your intake will not keep up with your needs, instead, you may drop to a maintenance dose. Taking 20 mg daily ongoing is a safe way to prevent a recurrence of the issue in future.

FOOD HABITS TO MAXIMIZE IRON ABSORPTION

While these strategies alone will not significantly raise your ferritin levels, they can improve absorption of iron and can help you maintain healthy iron levels over time.

Create eating routines. Emphasize eating at the same times each day, and prepare, look at and smell food. This primes your appetite and gets stomach acid flowing.
Take a few deep, calming breaths before eating. You can only digest and produce stomach acid to break down iron when relaxed.
Get adequate vitamin C from citrus, bell peppers, strawberries, kiwi etc.
Use cast iron cookware to cook acidic foods (such as tomato sauce).
Aim to sprout foods like lentils, pumpkin seeds, quinoa, to reduce phytates
Reduce oxalates by steaming or boiling spinach or chard and throwing away the water. Steam or boil spinach and chard and throw away the water, to reduce oxalates

Maximize morning time.

Iron absorption is better in the morning due to low hepcidin levels, so take it as early as you can (some folks who take thyroid medication may need to wait, that’s ok)
Be mindful of your habits. If you normally have coffee with milk and an egg white omelette, its time to change things up.
Limit calcium and egg whites around iron-rich meals, as they compete and bind with iron, respectively.
Wait at least 2 hours after your iron supplement or iron-rich meal to have coffee or tea. It's not the caffeine but tannins that are an issue; they block iron absorption up to 80%

COMMON CONCERNS

I have an increased need for iron during my heavy periods. Can I supplement only one week per month?

You can do so, just make sure that is enough to prevent deficiency. If your overall diet reliably meets your daily iron needs across the rest of the month, this approach may work for you. However, without tracking intake over time or confirming levels with bloodwork, a consistent daily dose is often a more reliable and simpler option.

I need B vitamins as well, don’t I?

Yes. B vitamins such as B6 and B12 play an important role in red blood cell formation and energy production. If levels of these nutrients are low, they can limit the body’s ability to make healthy blood, even when iron intake is adequate. For this reason, some iron products include B vitamins to help ensure that iron is effectively used. You can take a product like Flora Iron and get your daily dose of both iron and B vitamins, or you can ensure you meet your needs for required nutrients in a more general way through food and supplements.

I cannot swallow capsules

If you cannot take Ferritin+ capsules, try ferrous gluconate in liquid form. It does have competition issues and requires stomach acid, but it delivers much more iron and increases iron faster than some other liquid irons while staying gentler and better absorbed than ferrous sulfate tablets

Lifestyle & Physiology Considerations

Check for underlying causes of low ferritin (heavy periods, low stomach acid, gut inflammation, celiac, H. pylori, frequent blood donation, thyroid issues)
Be aware that running, combat sports and athletics in general deplete red blood cells, reduce absorption of iron and create a greater need for iron
Support stomach acid levels (low acid reduces iron absorption): mindful eating, avoiding excessive antacid use. If stomach acid is low, use ferritin – it doesn’t require stomach acid to break it down