Hair loss is a condition that can affect both men and women, though women may be more conscious of it due to their typically longer hair. While various factors such as genetics, hormones, stress, and certain health conditions can trigger hair loss, one often-overlooked cause is vitamin deficiency.
Vitamin Deficiencies That Can Lead to Hair Loss
Hair loss may result from nutritional deficiencies, rapid weight loss, low-calorie diets, and even obesity. Excessive intake of certain vitamin and mineral supplements can also interfere with the hair growth cycle, potentially leading to hair loss.
Research indicates that the Mediterranean diet, which emphasizes foods rich in antioxidants and anti-inflammatory properties, can promote hair growth and reduce hair loss.
Key vitamins linked to hair loss include:
Vitamin D
Vitamin D is crucial for the hair growth cycle, particularly in promoting the formation of new hair follicles. A deficiency in vitamin D can impair this process, making hair more prone to thinning and shedding.
Studies have shown that individuals with alopecia areata, a type of hair loss, often have lower vitamin D levels compared to those without the condition.
Vitamin B7 (Biotin)
Biotin, also known as vitamin B7, is well-regarded for supporting healthy hair, skin, and nails. It strengthens keratin, the protein that forms these structures, ensuring they are durable and less prone to breakage.
A deficiency in biotin can lead to fragile hair that breaks easily, becoming thinner and drier over time.
Vitamin B12
Vitamin B12 is vital for DNA synthesis and the production of healthy red blood cells, which are responsible for delivering oxygen to the body's tissues, including the scalp and hair follicles.
Inadequate B12 levels can hinder red blood cell production, reducing oxygen supply to the hair follicles. As a result, hair may become brittle and more likely to fall out.
Vitamin C
Vitamin C plays a key role in producing collagen, a protein that provides strength and elasticity to hair. It also helps protect hair from damage and breakage.
A lack of vitamin C can disrupt collagen production, making hair more vulnerable to breakage. Adequate vitamin C intake, on the other hand, supports healthy collagen levels, keeping hair strong and flexible.
Vitamin A
While vitamin A is commonly associated with maintaining good vision, it also plays a significant role in hair health. It supports cell growth, including hair cells, and aids in the regeneration of hair follicles.
Vitamin A deficiency can lead to dry, flaky scalps by impairing sebum production. A dry scalp increases the likelihood of brittle, easily broken hair.
Iron and zinc
Although iron and zinc are minerals rather than vitamins, they are essential for hair health. Iron deficiency can result in anemia, which reduces oxygen supply to hair follicles, contributing to hair loss.
Zinc is important for protein and tissue repair, including hair. A lack of zinc can disrupt the growth and repair of hair cells. Zinc also helps regulate the scalp's oil glands, keeping the scalp moisturized and preventing dryness and dandruff.
To prevent hair loss, it is essential to meet your body's vitamin and mineral needs. If hair loss worsens, consider consulting a doctor or using the Ai Care app, available for download on the App Store or Play Store.
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- dr Nadia Opmalina
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Jenna Fletcher (2024). Can a vitamin D deficiency cause hair loss?. Available from: https://www.medicalnewstoday.com/articles/321673
Jennifer Fisher, MMSc, PA-C (2024). Vitamins, minerals, and hair loss: Is there a connection?. Available from: https://www.health.harvard.edu/diseases-and-conditions/vitamins-minerals-and-hair-loss-is-there-a-connection
Jennifer Huizen (2024). Does biotin help hair growth?. Available from: https://www.medicalnewstoday.com/articles/319427
Amanda Barrell (2023). All you should know about biotin deficiency. Available from: https://www.medicalnewstoday.com/articles/320462
Cleveland Clinic (2023). Collagen Won’t Hurt Hair Growth, But It Probably Won’t Help Either. Available from: https://health.clevelandclinic.org/collagen-for-hair-growth