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Hair Loss Secrets Exposed: 10 Vitamin Deficiencies You Should Know About

Updated: Aug 24, 2023

Are you experiencing hair loss and curious about which vitamin deficiency causes hair loss? Hair loss can be a distressing issue, and understanding the link between hair loss and vitamin deficiencies is essential. While genetics, hormonal changes, and other factors play a significant role, deficiencies in specific vitamins can contribute to hair loss.

This article will delve into the ten most significant vitamin deficiencies that cause hair loss and discuss the vital role these vitamins play in maintaining healthy hair.

We will explore the impact of vitamin deficiencies such as vitamin D, C, E, biotin (vitamin B7), iron, zinc, selenium, and others on hair health. By understanding the role each of these vitamins play in hair growth and recognizing the symptoms of deficiency, you can better address the potential underlying causes of your hair loss.

10 Vitamin Deficiencies That Can Cause Hair Loss

So let us first understand what a vitamin deficiency means.

What is Vitamin Deficiency?

A deficiency occurs when the body doesn't get enough of a specific vitamin due to inadequate dietary intake or poor absorption. Vitamins are essential for average growth, development, and overall health. In the context of hair loss, specific vitamins can play a role. For example, a deficiency in Vitamin D, known as the vitamin that causes hair loss, can lead to hair follicles entering a resting phase, resulting in hair thinning and loss. Similarly, deficiencies in other vitamins like Vitamin B12 or Vitamin E can also contribute to hair loss by affecting vital processes for healthy hair growth. Adequate intake of these vitamins is crucial for maintaining optimal hair health.

In the next section, let us explore and understand which vitamin deficiencies can cause hair loss.

Vitamin Deficiency Causing Hair Loss

The vitamin deficiencies that cause hair loss are listed below:

1. Vitamin D

Vitamin D deficiency has been associated with hair loss, including female hair loss. This vitamin plays a crucial role in promoting the growth of healthy hair follicles. Research suggests vitamin D supplements can help restore hair loss in conditions like androgenetic alopecia, telogen effluvium, and alopecia areata. Vitamin D deficiency symptoms can include mood swings, fatigue, chronic pain, muscle weakness, and high blood pressure. To address female hair loss vitamin deficiency, maintaining adequate vitamin D levels is essential. You can achieve this by taking daily supplements, consuming vitamin D-rich foods like avocado and nuts, safely spending time in the sun, and checking if any medications are depleting your vitamin D levels.

2. Vitamin B7 (Biotin)

Biotin, also known as vitamin B7, is often linked to hair loss and vitamin deficiency in hair loss. Clinical improvement has been observed in individuals experiencing hair loss after supplementing with biotin. Biotin deficiencies are usually due to genetics or lifestyle choices like smoking and certain medications. It is recommended to include biotin-rich foods, such as dark green vegetables, and consider taking biotin supplements to support healthy hair growth. GRO Biotin Gummies are dietary supplements containing biotin, folic acid, and essential B vitamins to promote the production of keratin and collagen, supporting healthy-looking hair and a nourished scalp.

3. Vitamin E

Vitamin E, an antioxidant, plays a crucial role in protecting the cells in our body from damage. It is a naturally occurring vitamin found in various foods and is fat-soluble. While renowned for its nourishing and hydrating effects on the skin, it also benefits the scalp and addresses vitamin deficiency in hair loss.

Vitamin E helps create a protective barrier on the scalp, keeping the hair hydrated and healthy. It can also assist in reducing oxidative stress, a type of stress associated with hair loss. It is recommended to incorporate leafy green vegetables, sunflower seeds, and nuts into your diet to prevent a deficiency in vitamin E and combat the vitamin deficiency in hair loss,

4. Vitamin C

Vitamin C is crucial for maintaining healthy hair growth and addressing the issue of hair loss and vitamin deficiency. It plays an essential role in collagen production and aids in zinc absorption, which helps prevent hair loss. Including vitamin C-rich foods such as blackcurrants, kiwi fruit, kale, oranges, strawberries, and guava can help prevent vitamin C deficiency and support optimal hair health. Vitamin C also acts as a powerful antioxidant, protecting hair follicles from oxidative stress. Moreover, vitamin C is a critical protector of hair follicles by reducing oxidative stress. Vitamin C deficiency is another common factor contributing to hair loss, highlighting its vital role in absorbing iron in the intestines.

5. Vitamin B9 (Folic Acid)

Vitamin B9, also known as Folic acid, known for its significant role in fetal development, also stimulates cell growth and promotes healthy hair growth. It helps maintain normal oxygen levels, preventing premature graying of hair. However, a deficiency of folic acid can contribute to hair loss. To address the nutrient deficiency that causes hair loss, consider taking a supplement with folic acid. By ensuring sufficient folic acid intake, you can support the health and vitality of your hair, keeping it beautifully glossy and nourished.

6. Iron

Iron is crucial for hair health, and its deficiency can contribute to vitamin deficiency, causing hair loss, especially in females. Iron plays a vital role in the physiological processes of hair follicles and hair synthesis. Anemia from iron deficiency can lead to hair thinning, stunted growth, and loss. Fatigue, shortness of breath, sore tongue, brittle nails, and restless leg syndrome are additional symptoms. To address female hair loss vitamin deficiency, consider iron supplementation and include iron-rich foods like broccoli and berries in your diet.

7. Zinc

Zinc, often associated with vitamin deficiency and hair loss, is vital in tissue growth and repair, especially with oil gland function around hair follicles. A zinc deficiency is commonly observed in individuals consuming excessive cereal grains or infants relying on milk formula. It can also be prevalent among those with eating disorders. While zinc is not a vitamin, its deficiency can contribute to hair loss and vitamin deficiencies. Including zinc-rich foods like wheat germs, pumpkin seeds, and soy products can help maintain proper zinc levels and potentially alleviate hair loss caused by vitamin and zinc deficiencies.

8. Selenium

Selenium, similar to zinc, is a trace mineral that significantly supports healthy hair growth and addresses vitamin deficiency for hair loss. However, it is crucial to maintain the right balance of selenium, as excessive intake can lead to hair loss. Selenium possesses antioxidant properties that contribute to the body's metabolic functioning, helping to maintain a hormonal balance that supports healthy hair production and reduces hair loss. Additionally, selenium is crucial for the production of thyroid hormones, which play a role in regulating hair growth. To increase your selenium intake and combat vitamin deficiency for hair loss, consider incorporating Brazil nuts, rice, whole-wheat bread, and beans into your snacks or meals.

9. Essential Fatty Acids

Essential fatty acids, such as Omega-3 and Omega-6, promote hair growth and reduce inflammation. A vitamin deficiency for hair loss, especially in fatty acids, results in hair loss from the scalp and eyebrows. It is essential to incorporate foods like flaxseed and walnuts into your diet to address this vitamin deficiency. Additionally, dedicated daily supplements can provide a convenient and effective way to boost your intake of these essential nutrients. Ensuring an adequate supply of essential fatty acids can support healthy hair growth and minimize the risk of hair loss associated with female hair loss vitamin deficiency.

10. Amino Acids

A deficiency in protein and amino acids can contribute to hair loss and thinning. Amino acids are vital in various bodily functions, including tissue repair, hormone regulation, digestion, and immune function. It is essential to include protein-rich foods in your diet to ensure a healthy intake of amino acids. Lentils, seeds, cabbage, spinach, avocado, asparagus, and soybeans are excellent sources of amino acids and vitamins. By incorporating these foods into your meals, you can support hair health, address the vitamin deficiency that causes hair loss, and promote overall well-being.

In the next section, let us explore how we can prevent hair loss from vitamin deficiency.

How To Prevent Hair Loss from Vitamin Deficiency?

Maintaining healthy hair growth and preventing hair loss requires attention to various aspects of our lifestyle, including proper nutrition and self-care. Here are some effective strategies to prevent vitamin deficiency that causes hair loss:

  • Eat a balanced diet rich in fruits, vegetables, and whole grains.

  • Consider supplements under professional guidance.

  • Use hair care products with vitamins and minerals.

  • Opt for gentle shampoos and conditioners.

  • Manage stress through exercise and relaxation techniques.

  • Engage in regular physical activity to improve scalp circulation.

  • Avoid smoking and excessive alcohol consumption.

If you are concerned about hair loss, it is advisable to consult a healthcare professional, such as a dermatologist or a trichologist. They can assess your situation, identify the underlying causes of hair loss, and provide appropriate treatment options or referrals to specialists.


In the quest for healthy hair, understanding which vitamin deficiencies cause hair loss uncovers a fascinating connection between our diet and our beautiful luscious locks. From the sunshine vitamin, vitamin D, to the hair-strengthening powers of biotin, the collagen-boosting effects of vitamin C, and the protective benefits of vitamin E, our hair's health is intricately linked to our nutritional choices. By addressing deficiencies in these specific vitamins through a balanced diet, supplements, and targeted hair care products, we can discover the secrets to maintaining vibrant, flourishing hair. So, let us enfold the power of vitamins and nourish our hair to radiate confidence and vitality.

Frequently Asked Questions (FAQs)

1. What is the best vitamin for hair loss?

A. Biotin is a B vitamin that is essential for hair growth. It helps to produce keratin, the protein that makes up hair. Biotin deficiency can lead to hair loss, so it is important to get enough biotin in your diet. Good sources of biotin include eggs, nuts, and seeds.

2. Can low B12 cause hair loss?

A. Yes, low B12 levels can cause hair loss. B12 is essential for cell growth and development, and hair loss can indicate a B12 deficiency. If you are experiencing hair loss, it is essential to talk to your doctor to get your B12 levels checked.

3. What foods stop hair loss?

A. Several foods can help to prevent hair loss. These include foods rich in biotin, protein, iron, and zinc. Biotin-rich foods include eggs, nuts, and seeds. Protein-rich foods include meat, fish, poultry, and beans. Iron-rich foods include dark leafy greens, beans, and lentils. Zinc-rich foods include oysters, beef, and chicken.

4. What is the main deficiency for hair loss?

A. The primary vitamin deficiency for hair loss is iron. Iron is essential for hair growth, and a deficiency can lead to hair loss. If you are experiencing hair loss, you must talk to your doctor to check your iron levels.

5. Which vitamins grow hair the fastest?

A. No one vitamin can make hair grow the fastest. However, a combination of vitamins, including biotin, vitamin C, vitamin D, and vitamin A, can help to promote hair growth. These vitamins are all essential for cell growth and development, and they can help to keep your hair healthy and strong.


About The Author: Paula Bland

Paula Bland - Natural Hair consultant

The founder of TLP, Paula Bland, is a medically qualified Nurse Practitioner, Hair aesthetician and also a psychiatric Nurse Practitioner known for her highly effective hair consultation. Paula has a non-traditional approach to hair care and advocates a chemical-free, natural, and holistic approach. The Love of People is her brainchild, and its products reflect her approach to hair health and have helped women with naturally curly hair manage their curls in a chemical-free and organic way.



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