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  5. Vitamin D Deficiency & Hair Loss - The Link, Symptoms And Treatments

Are you one of those people who remain indoors all the time? You prefer not to expose yourself to the sunlight even during sunrise or sunset? Then, Vitamin D deficiency could be the cause of your hair loss!

Yes, vitamins and minerals are vital to maintain good skin and hair health. And, a deficiency of Vitamin D is directly linked to normal hair fall as well as conditions that cause hair loss.

Let’s understand this in detail and how you can deal with it.

Does Vitamin D Deficiency Cause Hair Loss?

Vitamin D deficiency is associated with hair loss according to scientific research. Some studies have suggested that low Vitamin D may also be linked to an autoimmune condition called alopecia areata. Alopecia areata is a condition in which a person loses his/her hair in patches.

It has been suggested that those with the condition tend to have low levels of Vitamin D (1). However, people without alopecia areata may also notice some hair loss due to low levels of Vitamin D (2).

Vitamin D is an important part of your system that stimulates your hair follicles to grow and produce new hair strands. It also prevents your existing hair strands from falling out.

Symptoms Of Vitamin D Deficiency

These symptoms may indicate a lack of Vitamin D deficiency.

  • Constant changes in mood
  • Fractures
  • Loss of bone density
  • High blood pressure
  • Slow wound-healing capacities
  • Weakening of your muscles
  • Infertility issues
  • Fatigue and constant pain


Symptoms may keep changing. Getting yourself medically examined is the best way to determine if you have a Vitamin D deficiency.

What Causes Vitamin D Deficiency?

If you’re somebody who doesn’t enjoy soaking-in the morning sun or your diet lacks a good amount of nutrients, you may experience a lack of Vitamin D levels.

Certain medications may contribute to Vitamin D deficiency as well. These include:

  • Antifungal medications (3)
  • Glucocorticosteroids (4)
  • Medications for HIV
  • Anticonvulsants

If you do notice symptoms of Vitamin D deficiency after starting any of these medications, make it a point to tell your doctor about it.

Other diseases like celiac disease and Crohn’s disease may also cause a lack of Vitamin D as they prevent the absorption of nutrients by the body.

How Can You Reduce Hair Fall Caused By Vitamin D Deficiency?

A lack of Vitamin D can be corrected by taking supplements or by consuming foods rich in Vitamin D.

You can take the supplements after a meal. It is recommended to take your Vitamin D supplements after you have had a meal high in fats like:

  • Eggs/cheese
  • Avocados
  • Chia seeds
  • Nuts
  • Fish

You should make it a point to visit your doctor regularly to evaluate your Vitamin D levels. Your doctor may recommend supplements that need to be taken everyday, once a week or just once in a month.

If you are experiencing any medical conditions that tend to reduce Vitamin D levels, you should address the condition first. In case you think your Vitamin D levels may have dropped after starting medication, talk to your doctor about it.

You can also try taking in some morning sunlight to increase your Vitamin D levels.


Make sure you’re avoiding the afternoon sun and in case you go out during peak hours, don’t forget to apply sunscreen to prevent sun damage.

The Endocrine Society recommends the following dosage of Vitamin D for various age groups (5):

Adults Between The Ages Of 19-55

600 IU of Vitamin D daily

Anybody Who Is Above The Age Of 55

Between 600-800 IU of Vitamin D daily

For Children

400-600 IU of Vitamin D

*IU is the ‘international unit’ which determines how potent a nutrient is.

How Can You Prevent Hair Fall Caused By Vitamin D Deficiency?

Apart from taking supplements and consuming foods rich in Vitamin D, you can follow these tips to reduce hair fall caused by a lack of Vitamin D.

  • Brush your hair gently.
  • Avoid tying your hair up too often.
  • Use a gentle, mild and natural shampoo and conditioner.

Wrapping Up

Low levels of Vitamin D can result in hair fall. Supplements and foods rich in Vitamin D will help treat the issue. Certain medical conditions and medications may also contribute to a lack of Vitamin D. If your Vitamin D levels are not too low, you can treat it by taking in some sunlight on an everyday basis.

Begin By Knowing Your Skin

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