Hair loss is a common concern that affects many individuals worldwide. While there are numerous potential causes, ranging from genetics to stress, research has also highlighted the potential role of vitamin D deficiency in hair loss. Dr. Rana Mays, a double board certified dermatologist explains the role of Vitamin D and how it can contribute to hair loss.
Vitamin D and Hair Follicles
Hair follicles, the skin structures from which hair grows, are influenced by a variety of factors, including hormones, nutrients, and vitamins. Research has shown that vitamin D receptors are present in hair follicles, suggesting that vitamin D plays a role in hair growth and maintenance. Specifically, vitamin D is thought to influence the anagen (growth) phase of the hair cycle.
Evidence Linking Vitamin D Deficiency to Hair Loss
Several studies have investigated the connection between vitamin D deficiency and hair loss. For instance, research has found that individuals with certain types of hair loss, such as alopecia areata, tend to have lower levels of vitamin D compared to those without hair loss. Alopecia areata is an autoimmune condition characterized by sudden, patchy hair loss.
Another study revealed that women with female pattern hair loss also had significantly lower levels of vitamin D, compared to healthy controls. Female pattern hair loss, the most common type of hair loss in women, is characterized by thinning hair on the crown of the scalp. Moreover, vitamin D deficiency has been linked to telogen effluvium, a condition where a large number of hair follicles enter the resting phase, resulting in widespread hair shedding.
Common ways to increase vitamin D levels include:
Sunlight Exposure: Spending time in the sun is one of the most effective ways to boost vitamin D levels. Aim for about 10-30 minutes of midday sunlight several times a week, depending on your skin type and geographical location.
Diet: Incorporate vitamin D-rich foods into your diet. Sources include fatty fish (such as salmon and mackerel), egg yolks, fortified foods (like milk and cereal), and cheese.
Supplements: Vitamin D supplements are widely available and can be an effective way to ensure you meet your daily requirements. It is important to follow the dosage recommendations provided by your healthcare provider.
Dr. Rana Mays, is a double Board Certified Dermatologist who specializes in hair loss disorders, diagnosis and targeted treatment. During hair loss consultation, Dr. Mays will examine the scalp and hair shaft to first determine the diagnosis. Based on her assessment, she will review clinically studied evidence-based treatments best targeted for each patient. Dr. Mays often combines prescription topicals, orals, injectables with optimization of labs such as vitamin D levels to ensure highest efficacy of hair restoration for patients.
