Vitamin D Deficiency and Its Impact on Hair Health

Vitamin D is one of the essential vitamins the body needs daily due to its crucial role in overall health. When vitamin D levels fall below the normal range in the blood, it can lead to numerous health issues such as bone thinning and deformities, rickets, osteoporosis, delayed walking ability in children, persistent fatigue, and mood swings.

Causes of Vitamin D Deficiency

The primary causes of vitamin D deficiency include following strict diets that exclude fish and meat, insufficient direct sunlight exposure due to constant use of sunscreen, and certain medical conditions that impair vitamin D absorption. These conditions include kidney diseases, cystic fibrosis, Crohn’s disease, and celiac disease. Additionally, accelerated metabolism, certain medications that hinder vitamin D absorption, obesity, aging, reduced bodily activity, and darker skin tones—due to the melanin pigment blocking vitamin D synthesis from sunlight—are also contributing factors.

Complications of Prolonged Vitamin D Deficiency

Long-term vitamin D deficiency can increase the risk of chronic asthma, cognitive impairments—especially in older adults—cardiovascular diseases, and certain types of cancer.

Vitamin D’s Role in Hair Health

Vitamin D plays a vital role in strengthening the scalp, which helps prevent hair loss and baldness. It stimulates hair follicles to grow and maintains healthy cells. Research has shown that vitamin D can aid patients undergoing chemotherapy by reducing hair loss when applied topically as a gel, improving hair quality and growth. Vitamin D supplements, taken after medical consultation, and moderate sun exposure can also support healthy hair.

Treating Vitamin D Deficiency

Regular medical check-ups are essential to detect vitamin D deficiency early. If deficient, consulting a healthcare professional promptly is crucial to receive appropriate treatment, including supplements. It is recommended to consume vitamin D-rich foods such as fish, milk and dairy products, egg yolks, cheese, beef liver, and fish oils.

Sunlight exposure remains the most effective natural method to boost vitamin D levels. The best time to soak up sunlight is in the early morning before noon, exposing the feet and hands to maximize skin absorption of vitamin D.