Can a lack of vitamin D cause hair loss?
Disease description:
I started experiencing hair loss after entering [this phase], could it be related to my habit of not liking to eat vegetables? My friends say it's due to a vitamin deficiency. Can a deficiency in vitamin D cause hair loss?
Doctor's answer (1)
Dr. Wang Xiaoyan
A deficiency in vitamin D can indeed potentially lead to hair loss. Vitamin D is crucial for scalp health, as it participates in regulating the normal function of hair follicles and promotes hair growth. When vitamin D levels are insufficient, it may affect the secretion of sebum and the maturation of hair follicles, leading to follicular atrophy and subsequent hair loss. In addition, vitamin D deficiency may trigger autoimmune-related hair loss conditions, such as alopecia areata. Although vitamin D deficiency is associated with hair loss, it can also result from other causes, including genetics, hormonal imbalances, and scalp infections. Therefore, when experiencing symptoms of hair loss, it is advisable to seek timely medical evaluation to determine the underlying cause and implement targeted treatment accordingly. At the same time, maintaining a balanced diet and getting adequate sun exposure in daily life are important for maintaining normal levels of vitamin D in the body.
