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Check your ferritin levels at home with our ferritin blood test to find out if you’re iron deficient. If you’re feeling fatigued or lacking energy, your iron stores could be low.
What's included
your discount will be applied at checkout

Why test
Ferritin levels?

The amount of ferritin in the blood provides an accurate reflection of the amount of iron stored in the body. Iron is an important component of red blood cells and it is required for their production. Because red blood cells are responsible for transporting oxygen around the body, iron also helps to keep your energy levels up. That’s because oxygen is vital for the production of energy by the cells in the human body and so iron will help to ensure red blood cells are properly developed and can effectively transport it

This ferritin blood test and helps identify if your iron levels are low which could cause iron deficiency anaemia, the symptoms of which include: extreme tiredness/fatigue, shortness of breath, pale skin, heart palpitations and low mood.

Can low levels of ferritin
affect my fitness?

Yes, particularly because low ferritin levels are associated with fatigue and this can lower your tolerance for exercise. Iron is essential for the transport of oxygen around the body and energy metabolism, which makes it vital for completing aerobic exercise. So, low iron levels or iron deficient anaemia can reduce your exercise capacity.

Equally, physical exercise can also be a cause for iron deficiency anaemia, particularly in menstruating female athletes. Some research has shown that iron deficiency is common in endurance athletes. The prevalence among female marathon runners is 28% compared to 11% in the general population*.

*Wouthuyzen-Bakker, M. (2015). Exercise-Induced Anaemia: A Forgotten Cause of Iron Deficiency Anaemia in Young Adults. Br J Gen Pract: 65(634), pp 268-269.

Can low levels of ferritin
affect my mood?

Iron is important for maintaining or boosting mood, especially as it helps deliver oxygen to the brain. Altered iron levels have been linked with modifying emotional behaviours such as mood, anxiety, and depression.

People who have depression often have significantly lower ferritin levels compared to healthy individuals. Studies have shown raising ferritin levels from low to normal reduces the likelihood of depression.

There are also suggestions that iron deficiency can cause feelings of anxiety, probably because of less oxygen being available to the various tissues of the body. Therefore, it is important to understand your ferritin/iron levels as these may be negatively affecting your mood.

Improved Levels
of Forth customers improved their ferritin results between tests.

improve your unique self

Want to improve your health & wellbeing? Forth gives you insight into your body’s key biomarkers. By tracking essential markers overtime you can build a picture of your own unique self and discover how your body responds to the changes you make so you can reach your personal best.

Chose a health check

Order your home blood test online and we’ll deliver it straight to your letterbox.

Collect your sample

Our finger prick blood test kit has everything you need. Just collect your sample, and return it to our accredited lab, using the Tracked-24 envelope supplied.

Fast, accurate results

Your blood test results will be reviewed by our healthcare team and uploaded to your dashboard within 24-48hrs. Along with simple explanations and expert advice on how to make improvements.

Health Dashboard

View your results on our app and web platform, which gives you key information, bespoke advice, and allows you to dive deeper to find out more.

Advice by medical experts

We don’t just provide your levels and leave you to it; our team of medical experts interpret any out-of range results and provide advice specifically tailored to you.


Our app allows you to compare your biomarker results against other individuals of a similar age and gender, so you’re able to benchmark your health more accurately, and identify any areas that need improvement.

Track changes over time

One test is a snapshot, but test repeatedly over time and you’ll see how your body reacts, adapts and changes to elements like diet, exercise, supplements, and more. The more information you have, the clearer the picture of your own unique physiology, and the greater your understanding of what your body needs to perform at its best.

Fast & Accurate

Fast & accurate analysis from accredited laboratory.


Secure access to online results.


Convenient tests can be done at home.

Online Dashboard

Online dashboard which tracks results over time.

Frequently asked questions

Take the guess work out of your health. Here are some of the most frequently asked questions we get asked. If you need anything else try our help section.

  • What is ferritin?

    Ferritin is a protein present in the body’s cells that’s responsible for storing iron. Stored iron can be used when the body needs it, for example, during the production of red blood cells. Most ferritin is found in the liver as well as the muscles, bone marrow and spleen but it can also be found in the blood. Read more

  • What does low ferritin indicate?

    Since ferritin gives an accurate indication about iron storage within the human body, low levels can signal iron deficiency.

  • What causes low ferritin levels?

    Low ferritin levels can be caused by long-term iron deficiency and can lead to anaemia. It’s often caused by not consuming enough iron in your diet or through blood loss e.g. trauma, heavy periods, or pregnancy.

    Finding out early if your ferritin levels are low is important because iron deficiency can make you feel quite unwell and you may struggle to complete daily tasks. Plus, prolonged deficiency can result in anaemia.

  • What can cause ferritin levels to be high?

    High ferritin levels can be caused by a condition called haemochromatosis or iron overload. It is a disorder which results from too much iron being absorbed from the diet and is an inherited condition which usually manifests between the ages of 30 and 60.

    Iron overload isn’t the only cause of high ferritin levels. Kidney failure, chronic liver disorders and rheumatoid arthritis are all causes, too. High ferritin levels may also be present in overweight or obese people and can be a sign of inflammation in these individuals rather than iron status.

  • What is the difference between iron deficiency and anaemia?

    It is possible to be iron deficient without anaemia. If you have iron deficiency without anaemia then your haemoglobin levels will be normal. However, if you have iron-deficiency anaemia your haemoglobin levels will also be reduced, but both can cause similar symptoms.

  • How can I improve my ferritin result?

    One way to improve your result is to include more iron in your diet. There are two types of iron, haem, and non-haem.

    Haem iron is found in meat, particularly red meat such as beef, lamb, and pork. Whereas, non-haem iron is present in plant-based sources such as spinach, cabbage, nuts, and seeds. You can increase the absorbance of non-haem iron by pairing food sources with vitamin C and avoiding tea with your meal. Instead, drink tea afterwards or pair a green salad including spinach with a glass of orange juice.

    Because iron can affect your energy levels, if you are deficient you may find your exercise capacity drops. Therefore, you may need iron supplementation, but you should consult medical advice before starting a new supplement. If you are training at a high intensity frequently, you will need to ensure you have adequate rest periods to allow your muscles to repair themselves and restrict iron loss.

  • What’s the difference between ferritin and iron?

    Ferritin and iron are not the same thing. Ferritin is a protein which stores iron and releases it when the body requires it. Ferritin is mainly found in liver cells with a small amount circulating in the blood. However, the amount that is present in the blood gives an accurate representation of how much iron is stored in your body.

    Iron is the mineral stored in ferritin. Iron is important for the production or red blood cells whose main function is to transport oxygen around the body.

  • What is a normal ferritin level?

    A healthy ferritin range in women is 13-150 ug/L whilst in men it is higher at 30-400 ug/L.

  • Who is at risk of low ferritin levels?

    Diet is the main contributory factor to low ferritin levels. There are two types of iron available in the diet, haem and non-haem iron. Haem iron is present in meat and is absorbed better by the body compared to non-haem iron which is found in plant-based sources.

    Therefore, vegans and vegetarians are at an increased risk of iron deficiency and reduced iron stores because they do not eat meat. Although non-haem iron is the most predominant form in the diet, its absorption is affected by many other dietary aspects. For example, things like phytate in cereals, fibre, tannins in tea and calcium can block the absorption of iron in the intestine. Our data shows that vegan/vegetarians had significantly lower levels than those who do not follow a vegetarian diet.

    Exercise can increase the loss of iron, especially endurance and high-intensity types. That’s because red cell turnover is increased in athletes and they can lose more iron during heavy sweating.

    Our data found that women are at an increased risk of deficiency whilst female vegans/vegetarians had the lowest ferritin results.

    Women can be at risk of iron deficiency due to heavy periods where there may be excessive blood loss.

  • What are the symptoms of high ferritin levels?

    The symptoms of iron overload may be similar to low ferritin levels but include:

    • Fatigue
    • Weakness
    • Weight loss
    • Joint pain
    • Irregular periods in women
    • Erectile dysfunction in men

Upgrade your test

All our tests are designed by our expert team of scientists who have taken the latest research to bring you the most relevant biomarkers to improve your health. Here are some alternative tests that cover essential biomarkers.

Baseline Plus
Per test
22 Biomarkers Included
Our best selling general health blood test measuring 22 essential biomarkers for good health and wellbeing.
48 Biomarkers Included
Our best value wellbeing check measuring over 45 biomarkers.

Looking for a bespoke test?

Would you prefer to test more biomarkers at the same sample of blood? All our tests are customisable and can be tested in just one sample of blood. Click the button below to add more biomarkers to this test.

your test

All our tests are designed by our expert team of scientists who have taken the latest research to bring you the most relevant biomarkers to improve your health. Here are some alternative tests that cover essential biomarkers.

Baseline Plus
Per test
22 Biomarkers Included
Our best selling general health blood test measuring 22 essential biomarkers for good health and wellbeing.
48 Biomarkers Included
Our best value wellbeing check measuring over 45 biomarkers.
Looking for a bespoke test?

Want to add more biomarkers to your test? That’s no problem. All of our tests can be personalised.  Just use our ‘customise this test’ button below to see the list of biomarkers which you can add to your test and get analysed at the same time. 

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Lab Analysis

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Doctor/nurse reviews

Our doctors and nurses are currently working remotely and continue to review results.

Home phlebotomy appointments

Our home phlebotomy service is running but please be aware, if you or anyone in your household have experienced symptoms of COVID-19 within the last 14 days, due to the current government guidelines, we are unable to arrange an appointment at this time. Due to a high demand for nurses, along with current covid restrictions around the UK, there may be a delay in providing an appointment.

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You can continue to access your results as normal either through your browser or via our iOS or Android app.


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