Is There an Association Between 25(OH)D Serum Levels and Vitamin D Status with the Severity of Androgenetic Alopecia in Men?

    January 2026
    Raissa Raissa, Legiawati Lili, Yufanti Sujudi, Nurul Ratna Mutu Manikam
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    TLDR Lower vitamin D levels are linked to more severe hair loss in men.
    This study investigated the relationship between vitamin D status, serum 25(OH)D levels, and the severity of androgenetic alopecia (AGA) in 74 men. The findings revealed that 64.9% of participants were vitamin D deficient, and those with moderate to severe AGA had lower average serum 25(OH)D levels (17.1 ± 4.79 ng/mL) compared to those with mild AGA (21.8 ± 6.39 ng/mL). A significant association was found between lower serum 25(OH)D levels and increased AGA severity (p=0.01), as well as between hair diameter and AGA severity (p=0.036). The study concludes that vitamin D status and serum 25(OH)D levels are significantly associated with AGA severity in men.
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