Which vitamin deficiency causes hair loss
Hair loss can be a distressing experience, affecting both men and women alike. While various factors contribute to this common problem, vitamin deficiencies play a significant role in hair health. Understanding the connection between vitamin deficiency and hair loss is crucial for implementing effective prevention strategies. In this blog, we will explore the role of vitamin deficiencies in hair loss, as well as other potential causes, and provide valuable tips on preventing and stopping hair loss.

Which Vitamin Deficiency Causes Hair Loss?

Vitamins are essential for maintaining healthy hair. Among the many vitamins, two, in particular, are strongly associated with hair loss:

Vitamin D Deficiency

Vitamin D plays a vital role in hair follicle health. Studies suggest that low levels of vitamin D can contribute to hair loss. This deficiency disrupts the hair growth cycle, leading to weaker, thinner hair. To address this, consider incorporating vitamin D-rich foods like fatty fish, eggs, and fortified dairy products into your diet. Additionally, exposure to sunlight, a natural source of vitamin D, can help optimise levels.

Vitamin B7 (Biotin) Deficiency

Biotin deficiency is another common cause of hair loss. Biotin is crucial for maintaining healthy hair follicles and promoting hair growth. Including biotin-rich foods like eggs, nuts, seeds, and leafy greens in your diet can help combat deficiency. Additionally, biotin supplements may be beneficial, but it’s essential to consult a healthcare professional before starting any supplementation.  
Which vitamin deficiency causes hair loss
A diet rich in nutrient-dense foods may assist in preventing hair loss.

What Causes Hair Loss Besides Vitamin Deficiencies?

While vitamin deficiencies are a significant contributor to hair loss, other factors can also play a role:

Hormonal Imbalances

Hormonal imbalances, such as those caused by conditions like polycystic ovary syndrome (PCOS) or thyroid disorders, can trigger hair loss. Addressing the underlying hormonal issue is crucial in such cases.

Stress and Emotional Factors

Chronic stress, anxiety, and emotional turmoil can disrupt the normal hair growth cycle, leading to hair loss. Adopting stress management techniques, such as regular exercise, meditation, and relaxation techniques, can help mitigate this impact.

Poor Nutrition

A diet lacking in essential nutrients can result in hair loss. Consuming a well-balanced diet that includes lean proteins, fruits, vegetables, and whole grains provides the necessary nutrients for healthy hair growth.

Medical Conditions and Medications

Certain medical conditions like alopecia areata, scalp infections, or side effects of medications can contribute to hair loss. Consulting a healthcare professional for diagnosis and treatment is crucial in such cases.
Which vitamin deficiency causes hair loss
Hair loss can be a difficult issue to deal with but there are many effective treatment that can prevent further hair loss.

How to Stop Hair Loss: Prevention and Maintenance

Knowing how to prevent hair loss and the best steps to take can assist in preventing or minimising hair loss.

Balanced Diet

Maintain a well-balanced diet rich in vitamins, minerals, and proteins to promote healthy hair growth. Include foods like salmon, spinach, walnuts, and lentils to ensure adequate nutrient intake.

Vitamins and Supplements

Consider incorporating hair-boosting vitamins and supplements into your routine after consulting with a healthcare professional. Besides vitamin D and biotin, vitamins such as vitamin C, vitamin E, and iron play vital roles in hair health.

Haircare Routine

Adopt a gentle haircare routine, avoiding excessive heat styling and harsh chemical treatments. Use mild shampoos and conditioners, and avoid tight hairstyles that can stress the hair follicles.

Stress Management

Practice stress management techniques like exercise, yoga, and meditation to reduce the impact of stress on hair health.

Regular Check-ups

Regularly visit your healthcare provider to address any underlying medical conditions that may contribute to hair loss, correct diagnoses and recommended the most appropriate hair loss treatment options.  
Which vitamin deficiency causes hair loss
Restore hair with ICCM, our many effective hair treatments can bring back our beautiful locks.

ICCM Can Help with Your Hair Loss

At ICCM (International Centre for Cosmetic Medicine), we understand the emotional impact that hair loss can have on individuals. Our team of experienced professionals is dedicated to helping you address and overcome this concern. Through our personalised approach, we offer a range of advanced treatments and solutions tailored to your unique needs. Whether it’s identifying the underlying causes of your hair loss, providing nutritional guidance, recommending suitable supplements, or offering innovative hair restoration procedures, we are here to support you every step of the way. With our expertise and commitment to excellence, ICCM is your trusted partner in restoring confidence and helping you achieve healthy, beautiful hair.

How to book an appointment with ICCM in Sydney

To book an appointment or inquire, you can fill out our online contact form, email us at [email protected] or contact us by telephone at 02 9233 3103 (Sydney CBD Clinic) or 02 4605 9024 (Campbelltown Clinic).


Below you can find the questions that we’re most frequently asked:

Does low B12 cause female pattern hair loss?

While low vitamin B12 levels can contribute to various health issues, there is limited evidence directly linking it to female pattern hair loss (FPHL). Female pattern hair loss is primarily influenced by genetic factors, hormonal imbalances, and sensitivity to androgens (male hormones).

Can vitamin deficiencies really cause hair loss?

Yes, vitamin deficiencies, such as low levels of vitamin D and biotin (vitamin B7), can disrupt the hair growth cycle and lead to hair loss. Ensuring adequate intake of these vitamins through diet or supplementation can help prevent hair loss.

Are there any other factors besides vitamin deficiencies that contribute to hair loss?

Yes, hair loss can be caused by various factors, including hormonal imbalances (such as those seen in PCOS or thyroid disorders), stress, poor nutrition, certain medical conditions, scalp infections, medications, and more. Addressing these factors is crucial for preventing and managing hair loss effectively.

How can I prevent hair loss besides taking vitamins?

In addition to maintaining a diet rich in essential nutrients, you can prevent hair loss by adopting a gentle haircare routine, managing stress through relaxation techniques, seeking treatment for underlying medical conditions, and regularly visiting healthcare professionals for check-ups and guidance.

Are there specific vitamins I should include in my diet to promote healthy hair growth?

Besides vitamin D and biotin, vitamins such as vitamin C, vitamin E, and iron play important roles in hair health. Incorporate foods rich in these vitamins into your diet, or consider taking supplements after consulting with a healthcare professional.

Is it possible to regrow hair after experiencing hair loss?

Hair regrowth depends on the underlying cause of hair loss. While some conditions may have limited regrowth potential, addressing the root cause and following a comprehensive approach that includes proper nutrition, lifestyle modifications, and targeted treatments can often promote hair regrowth. This information is not intended to be used for diagnosis or treatment. It is aimed at presenting a perspective only and is not a substitute for a prescription. Anyone experiencing a medical condition should consult their doctor.

About The Author - Dr Tony Prochazka

MBBS, FFMACCS/Cosmetic Doctor Dr Tony was the Inaugural Dean of the Faculty of Medicine at the Australasian College of Cosmetic Surgery, and a former vice-president of the Cosmetic Physicians Society of Australasia. He is a regular presenter and teacher at international conferences, with invitations to meetings in Australia, China, New Zealand and South America.Read More