According To Researchers, Does Vitamin D Deficiency Cause Hair Loss?

Hair loss is often linked to a deficiency of vitamin D. What are the reasons and treatments available? Here is the full list of all important aspects regarding vitamin D deficiency. 

According To Researchers, Does Vitamin D Deficiency Cause Hair Loss?

Vitamin D And Hair loss

A deficiency may lead to hair loss as Vitamin D stimulates hair follicles.

Vitamin D deficiency causes hair loss and other hair problems with some evidence. The hair may be affected as Vitamin D stimulates hair follicles to grow and when the body doesn’t have enough. 

An autoimmune condition that causes patchy hair loss is a vitamin D deficiency linked to alopecia areata. 

People with alopecia areata have much lower levels of vitamin D than people who do not have alopecia as research shows. 

In people without alopecia, vitamin D deficiency can also play a role in hair loss. Women who have other forms of hair loss had lower levels of vitamin D than other research shows. 

Now, How Does Vitamin D Affect Hair?

Including the skin and hair, vitamin D affects the health of many parts of the body. 

In the creation of new hair follicles, vitamin D plays a role. The tiny pores from which new hairs grow are the hair follicles. Helping maintain thickness and prevent existing hair from falling out prematurely are the new follicles.

Getting amounts of vitamin D can support hair growth and regrowth because of this link. 

Here Are The Other Vitamin D Deficiency Symptoms

With no symptoms, or the symptoms may be nonspecifically changing over time comes people with a vitamin D deficiency. 

Here are the symptoms of a vitamin D deficiency:

  • Including depression or anxiety, changes in mood
  • Frequent fractures
  • Slow wound-healing
  • Loss of bone density
  • Muscle weakness
  • New or worsening high blood pressure
  • Constant fatigue
  • Chronic pain
  • Infertility
  • Decreased endurance

The most common causes of a vitamin D deficiency is a lack of sunlight or not eating enough foods rich in vitamin D. 

Another underlying condition including Crohn’s disease or celiac disease preventing the body from fully absorbing nutrients are some people having vitamin D deficiencies. 

Experiencing symptoms of the primary cause as well as symptoms of a vitamin D deficiency as well are people coming with an underlying medical condition. 

Before it can be used, certain medications may also cause the body to break down vitamin D. The list of medications probably causing vitamin D deficiency include these:

  • Antifungals
  • Glucocorticoids
  • Medications for HIV
  • Anticonvulsants

A person should speak to their doctor about alternatives in case medication is causing a vitamin D deficiency or hair loss. 


The most effective treatment for vitamin D deficiency is the Vitamin D supplements. 

According to research, the most effective treatment is for them to take vitamin D supplements when a person lacks Vitamin D. 

Particularly ones with plenty of healthful fats, Vitamin D supplements should be taken with meals. Here helping vitamin D to be absorbed into the body, is fats. 

Here are the good sources of dietary fat:

  • Avocado
  • Eggs
  • Chia seeds
  • Some fish, include salmon, trout, and sardines
  • Nuts
  • Cheese

In a variety of forms come supplements. They may be taken daily, once a week, or once a month. A doctor will do a blood test every few months to see if the person’s levels are increasing when treating low vitamin D levels. 

Adults between the ages of 19 and 55 receive 600 IU of vitamin D daily according to the Endocrine Society. Describing how potent a vitamin or supplement is the unit IU stands for ‘international unit’ rather than its mass. 

Adults over 55 years old receive between 600 and 800 IU per day of vitamin D as recommended by The Endocrine Society. For children, they finally recommend between 400 and 600 IU per day of vitamin D.

The underlying condition will need to be treated in cases where it is causing the deficiency. 

The cause of vitamin D deficiency is both Crohn’s and celiac disease. Partially or fully blocking the absorption of vitamin D from food are both these diseases. 

A person may need to discuss alternatives with their doctor if medications are the cause. 

Increasing the amount of time spent in the sun can also help with mild deficiencies. To reduce the risk of skin damage however it is important to wear sunscreen and avoid prolonged exposure. 


Spending 15 to 20 minutes outside per day and eating foods that are rich in vitamin D are the person’s first defense against hair loss caused by a vitamin D deficiency. 

To support their vitamin D intake goals, a person may also want to add a vitamin D supplement to their routine. 

Anyone experiencing hair loss can prevent further breakage by these methods in case of brittle or sparse hair requiring gentle treatment. 

  • When brushing keep away from pulling the hair
  • Avoid ponytails and other tight hairstyles
  • Use of a gentle and natural conditioner
  • Before bed to prevent tangling putting a long hair in a loose braid

The Final Takeaway

May aspects of the person’s health and wellbeing including hair growth are affected by Vitamin D deficiency. People are more likely to experience hair loss and many other problems having vitamin D deficiency. 

Consult a doctor who is likely suggesting supplements, dietary changes, as well as spending more time outdoors to help combat the deficiency for people concerned about vitamin D deficiency-related hair loss 

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