Home » Blog » Health Guide » Which Vitamin Deficiency Causes Hair Loss In Females?

Which Vitamin Deficiency Causes Hair Loss In Females?

This article was created after thorough research and has been improved with the assistance of AI technology. Furthermore, our dedicated editorial team has meticulously fact-checked and polished its content for accuracy and clarity.

Are you worried about hair loss? Have you thought about the cause of this? For many women, experiencing hair loss can be upsetting and severely affect their confidence.

While it’s normal to shed between 50-100 strands of hair per day, excessive shedding or thinning hair could signify an underlying issue.

Our bodies rely on a delicate balance of vitamins and minerals to function optimally, and a lack of certain essential nutrients can manifest in various ways, including hair loss. 

In this article, we’ll explore the vitamin deficiencies that can contribute to hair loss in females and provide insights into prevention and treatment.

Key takeaways:

Several vitamins play crucial roles in maintaining healthy hair growth and preventing hair loss.
Vitamin deficiencies can arise from various factors such as poor diet, age, medications, etc, which will thereby lead to hair loss, especially in females.
If you’re experiencing significant hair loss due to vitamin deficiency, it’s advisable to consult with a healthcare professional and make certain changes in your daily routine.

Understanding Hair Loss And Its Causes

Hair loss, or alopecia, can occur for various reasons, including genetics, hormonal imbalances, medical conditions, stress, and nutritional deficiencies. The hair growth cycle consists of three phases: anagen (growth phase), catagen (transition phase), and telogen (resting phase). 

Hair Loss And Its Causes

Disruptions in this cycle can lead to excessive hair shedding or thinning. While factors like age, hormonal changes, and stress are commonly associated with hair loss, the role of vitamins in maintaining healthy hair growth is often underestimated. Vitamins are essential for numerous bodily functions, including cell growth, tissue repair, and metabolic processes, all of which play a crucial role in hair health.

What Causes Vitamin Deficiencies?

Vitamin deficiencies can arise from several factors, including:

  • Poor diet: A diet lacking essential nutrients, such as those found in fruits, vegetables, whole grains, and lean proteins, can lead to vitamin deficiencies over time.
  • Dietary restrictions: Strict diets, such as veganism or restrictive eating disorders, can make it challenging to obtain adequate amounts of certain vitamins.
  • Malabsorption issues: Conditions like Crohn’s disease, celiac disease, or other gastrointestinal disorders can impair the body’s ability to absorb nutrients effectively.
  • Medications: Certain medications, such as antibiotics, antacids, and cholesterol-lowering drugs, can interfere with vitamin absorption or deplete vitamin levels in the body.
  • Age: As we age, our bodies may become less efficient at absorbing and utilizing vitamins from food sources.

The 10 Vitamin Deficiencies That Lead To Hair Loss

While various vitamin deficiencies can contribute to hair loss, some are more commonly associated with this issue than others. Here are ten vitamin deficiencies that may lead to hair shedding or thinning in females:

Vitamin Deficiencies That Lead To Hair Loss

Iron deficiency

Iron is essential for healthy hair growth and is a key component of hemoglobin, which carries oxygen to the hair follicles. A lack of iron can cause hair to become dry, thin, and brittle, leading to excessive shedding.

Vitamin C deficiency

Vitamin C is a powerful antioxidant that helps in the absorption of iron and promotes collagen production, which is crucial for healthy hair growth. A deficiency can weaken hair follicles and contribute to hair loss.

Vitamin D deficiency

Vitamin D plays a role in hair follicle cycling and regulates hair growth. A lack of this vitamin can disrupt the hair growth cycle and lead to thinning or shedding.

Biotin (Vitamin B7) deficiency

Biotin is a B-complex vitamin that supports the production of keratin, a key structural component of hair. A deficiency can result in hair loss, as well as brittle nails and dry skin.

Zinc deficiency

Zinc is essential for protein synthesis and cell division, both of which are crucial for healthy hair growth. A lack of zinc can lead to hair shedding, as well as a dry, flaky scalp.

Vitamin E deficiency

Vitamin E is an antioxidant that helps protect hair follicles from oxidative stress. A deficiency can contribute to hair loss and scalp inflammation.

Vitamin B12 deficiency

Vitamin B12 is vital for DNA synthesis and red blood cell production, both of which are necessary for healthy hair growth. A lack of B12 can cause hair to become dry, brittle, and prone to shedding.

Folic acid (Vitamin B9) deficiency

Folic acid is essential for cell growth and division, including the growth of new hair follicles. A deficiency can lead to hair thinning and shedding.

Niacin (Vitamin B3) deficiency

Niacin plays a role in hair follicle health and circulation. A lack of this vitamin can contribute to hair loss and scalp inflammation.

Vitamin A deficiency

Vitamin A is necessary for the growth and maintenance of healthy hair cells. A deficiency can cause hair to become dry, dull, and prone to breakage, leading to excessive shedding.

Treatments And Solutions For Vitamin Deficiencies

If you suspect that a vitamin deficiency is contributing to your hair loss, it’s essential to consult with a healthcare professional. They can order appropriate blood tests to identify any deficiencies and recommend the following treatment options:

  • Dietary changes: Incorporating more nutrient-dense foods into your diet can help address vitamin deficiencies. Foods like leafy greens, fruits, nuts, seeds, lean proteins, and whole grains are excellent sources of various vitamins and minerals.
  • Supplements: In cases of severe deficiency or malabsorption issues, your healthcare provider may recommend taking vitamin supplements to correct the imbalance.
  • Addressing underlying conditions: If an underlying medical condition is causing the vitamin deficiency, treating that condition may help resolve the hair loss issue.
  • Topical treatments: In some cases, topical treatments containing specific vitamins or nutrients may be recommended to promote hair growth and strengthen existing hair.
  • Lifestyle changes: Reducing stress, getting adequate sleep, and maintaining a healthy weight can all contribute to overall hair health and potentially alleviate hair loss caused by vitamin deficiencies.


Hair loss in females can be a complex issue with various underlying causes, including vitamin deficiencies. While genetics and hormones often play a role, ensuring adequate intake of essential vitamins and minerals is crucial for maintaining healthy hair growth.

By addressing any deficiencies through dietary changes, supplements, or treating underlying conditions, many women can potentially reverse or prevent further hair loss. It’s essential to consult with a healthcare professional to identify the root cause and develop an appropriate treatment plan.


1. What vitamin am I lacking if my hair is falling out?

If you’re experiencing excessive hair shedding or thinning, you may be deficient in vitamins like iron, vitamin C, vitamin D, biotin, zinc, vitamin E, vitamin B12, folic acid, niacin, or vitamin A. A blood test can help identify specific deficiencies.

2. Can low vitamin D and B12 cause hair loss?

Yes, both vitamin D and vitamin B12 deficiencies have been linked to hair loss. Vitamin D plays a role in hair follicle cycling, while vitamin B12 is essential for DNA synthesis and red blood cell production, both of which are necessary for healthy hair growth.

3. What does vitamin D deficiency hair loss look like?

Vitamin D deficiency hair loss can manifest as thinning or shedding of hair, particularly on the scalp. The hair may also appear dull, dry, and brittle.

4. Will hair grow back from B12 deficiency?

Yes, in many cases, hair loss due to a vitamin B12 deficiency can be reversed once the deficiency is corrected. Addressing the deficiency through dietary changes, supplements, or treating any underlying conditions can help promote new hair growth and restore hair health.


NCBI (n.d) The Role of Vitamins and Minerals in Hair Loss: A Review Available online at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380979/

Healthdirect (2024) Female pattern hair loss Available online at: https://www.healthdirect.gov.au/female-pattern-hair-loss

Jessica Rivera

Dr. Jessica Rivera has more than 10 years of experience in the cosmetic industry as a hair care specialist. As a licensed cosmetologist, she has an in-depth understanding of hair and scalp health and a strong desire to support others in achieving their hair goals. Dr. Jessica is also a reputable author and supplement reviewer, specializing in hair care products and ingredients. Her engaging and informative writing style makes complex topics accessible to a wide audience. Dr. Jessica is committed to assisting her readers in making well-informed decisions regarding their hair care routines in order to attain healthy, beautiful hair.

View All Posts

Leave a Comment

Item added to cart.
0 items - $0.00