The Facts About Ferritin Deficiency, iron and Hair Loss

Hair is the first and most noticeable part of beauty. A fine head of hair adds beauty to a good face and terror to an ugly one. Despite being the center of interest, hair loss has affected 35 million men and 21 million women across the globe (1). Among many other causes, ferritin deficiency is one of the ordinary yet reversible causes of hair loss.

What is Ferritin?

When an excess of Iron is taken into the diet, it enters the blood to raise serum iron levels. Higher levels of Iron can damage our bodies, which is where Ferritin comes into play. Ferritin is a protein synthesized by our body to store excess Iron and provide a steady iron supply for the normal functioning of our body’s metabolic processes, including the synthesis of new cells.

So, serum iron and serum ferritin levels are two entirely different entities. Serum iron is the readily available form of Iron to be used by cells, whereas serum ferritin depicts the status of iron stores in the body. Both are essential markers of hair growth.

How Iron levels affect hair loss

Hemoglobin, an oxygen-carrying protein in red blood cells, comprises an iron core and porphyrin rings. Deficiency of Iron leads to less hemoglobin synthesis and, ultimately, a decreased supply of oxygen to the tissues – a condition called Iron deficiency anemia.

To cope with this oxygen shortfall, the body redirects the supply to essential organs, leaving hair follicles oxygen-deprived and contributing to hair loss.

On the other hand, Ferritin compensates for this iron deficiency by releasing stored Iron into the bloodstream, but it doesn’t hold up for too long. Ultimately, the body pays for low iron levels in circulation by borrowing Ferritin from hair follicles and arresting hair growth. The iron levels in the blood are partially restored, which may lead us to believe that there is no iron deficiency.

The lifecycle of hair consists of a growing phase (anagen), a transition phase (catagen), and a resting phase (telogen).

On average, hair will grow for about 5 years before falling out and being replaced by a new strand of hair. If the ferritin levels are low, the anagen phase is reduced, hampering the total growth of hair and resulting in premature falls.

Some Symptoms of Low Ferritin Levels in the Body

Low ferritin levels can cause various symptoms in the body, such as fatigue, dizziness, shortness of breath, headache, difficulty concentrating, and a pounding sensation in the ears. Hair loss is also a possible symptom. Additionally, an individual may experience difficulty concentrating and restless legs if their ferritin levels are low. Treatment for low ferritin levels typically involves iron supplementation and dietary changes.

How does Ferritin level affect the thyroid?

Research has suggested that low ferritin levels may be associated with hypothyroidism. A low ferritin level might lead to symptoms related to hypothyroidism, even when standard thyroid tests do not show any abnormalities.

The hair growth cycle and the quality of the hair can both be impacted by hormonal imbalances. The health of hair follicles is known to be affected by hyper- and hypothyroidism both directly and indirectly, which is linked to hair loss.

Descriptive research published in 2013 followed 1200 participants for 25 months to determine the relationship between thyroid problems and alopecia. The most common types of hair loss diseases were androgenetic alopecia (14.4%), diffuse alopecia (71%), and alopecia areata (11.%).

Causes of iron deficiency

Decreased dietary intake is one of the most common causes of iron deficiency. Iron obtained from plant sources (non-heme iron) has very low absorption (<10%) compared to iron obtained from animal sources (heme iron) which have higher absorption (30-50%). So, people who are strict vegetarian are more prone to develop iron deficiency.

Hair loss and ferritin deficiency

Other causes of iron deficiency include:

  • Menstrual blood loss
  • Gynecological disorders
  • Celiac disease
  • Crohn’s disease
  • GI bleed
  • Medications and Alcohol misuse
  • Food that inhibits iron absorption
  • Proton pump inhibitors (PPI)
  • Less production of stomach acid
  • Autoimmune disorders
  • Hormonal disorders

Who is affected more?

Menstruating women are more prone to develop iron deficiency due to loss of blood in each cycle and not compensating it in daily diet. Their ferritin levels fall below the critical point. Such women present with the complaint of shedding too much hair, usually more than 100 strands per day.

What level of ferritin is alarming?

Normal serum ferritin levels range from 15-150 ng/ml (µg/L). You’re most unlikely to suffer hair loss even if serum levels are in lower limits. But this doesn’t apply to everyone and some people still develop hair loss due to the scarcity of iron, even if ferritin levels are above 40ng/ml (2).

Hair Loss and ferritin deficiency

Several studies have been done to find out a relation between serum ferritin levels and hair loss. Most of them concluded that serum ferritin level is an important marker of hair growth (3)(4)(5). Another study found no evidence of hair loss in a woman with a serum ferritin greater than 10ng/ml (6).


Consult with a trichologist to know if your hair loss due to ferritin deficiency. If the former is the case, replenishing the iron stores with increased dietary iron intake can drastically reduce the hair fall and improve the outcome. The food that is rich in iron include

  • Liver and other organ meat
  • Turkey
  • Red meat
  • Spinach
  • Shellfish
  • Legumes
  • Pumpkin seeds

Vitamin C aids in the absorption of iron from the gastrointestinal tract. So, adding Vitamin C in the diet can also boost iron absorption.

Caffeine present in tea, coffee, and carbonated drinks can impede iron absorption. Avoiding such a drink is a good move if you’re suffering from iron deficiency already.

Iron deficiency developed in the background of certain intestinal diseases and gynecological disorders requires treating the primary cause first and then replenishing iron stores.

Iron supplements may cause a gastrointestinal disturbance in some people, consult to your doctor before starting such supplements.

A study published in “International Journal of Food and Nutrition Research” revealed that Intermittent iron plus intermittent antioxidants, vitamins, calcium, amino acids and omega 3 had the best benefit showing reduction in hair fall after 4 weeks and 21% improvement in density over 6 months (7).


Hair loss due to ferritin deficiency is a treatable and completely reversible condition. Supplementing with iron and other nutrients can not only prevent further hair loss but can also help regrow hair. If you’re experiencing hair loss despite making changes to your diet, it may be time to see your doctor for a diagnosis.

Ferritin levels lower than 15ng/ml are usually associated with hair loss. Consult your doctor if your labs show this much drop of ferritin. You’ll definitely need iron supplements.

Removing the element of stress and improving quality of sleep might also benefit in reducing hair loss.

An estimated 3.5 billion dollars is spent by hair loss sufferers annually in the USA, according to Washington Post. Out of these, 99% of hair treatment options don’t work (8). Quite disappointing right? But don’t worry, it needs an expert trichologist to properly diagnose the cause of hair fall. Book an appointment with us now >