Is vitamin D deficiency the reason behind your hair loss?

Hair loss can be a distressing experience which impacts our self-esteem and overall well-being. While various factors contribute to hair loss, one often overlooked cause is vitamin D deficiency. Understanding the role of vitamin D in hair health and how its deficiency can lead to hair loss is important for any further course of action. Here is all we need to know about the connection between vitamin D and hair loss, the symptoms of deficiency, and ways to address it.

The role of vitamin D in hair health

Vitamin D is also called the “sunshine vitamin.” It is essential for numerous bodily functions, including hair growth.It plays a significant role in the hair follicle cycle, particularly in the anagen (growth) phase. Research has shown that vitamin D receptors are significant for the production of new hair follicles. A study published in the journal Stem Cells Translational Medicine highlighted that vitamin D helps in the creation of new hair follicles and may help wake up dormant ones, aiding in hair regrowth.

How vitamin D deficiency leads to hair loss

When our body lacks sufficient vitamin D, it can disrupt the normal hair follicle cycle, leading to hair loss. Vitamin D deficiency has been linked to alopecia areata, an autoimmune condition that results in patchy hair loss. According to a study published in the International Journal of Dermatology, individuals with alopecia areata had significantly lower levels of vitamin D compared to those without the condition.
A lack of vitamin D can cause the hair growth cycle to become unbalanced, resulting in more hair follicles entering the resting phase rather than the growth phase. This imbalance can lead to thinning hair and increased hair shedding.

How to identify the deficiency of Vitamin D

Recognising vitamin D deficiency is the first step in addressing potential hair loss related to it. Common signs of vitamin D deficiency include:

To confirm a deficiency, a simple blood test can be performed.

How to address vitamin D deficiency

If someone suspects that vitamin D deficiency is contributing to their hair loss, there are several steps that can be taken to improve their levels:

Spending time in sunlight helps your body produce vitamin D. Aim for about 15-30 minutes of sun exposure at least twice a week, depending on your skin type and geographical location.
Add foods rich in vitamin D into your diet, such as fatty fish, egg yolks, fortified dairy products, and mushrooms exposed to sunlight.
If getting enough vitamin D from sunlight and diet is challenging, consider taking vitamin D supplements. The National Institutes of Health recommends a daily intake of 600-800 IU (International Units) for most adults.