Vitamin D receptors are present in testicular tissue, and emerging evidence suggests that vitamin D influences testosterone synthesis and sperm motility. Deficiency has been associated with reduced semen quality and hormonal imbalance.
Vitamin D participates in calcium regulation within sperm cells, affecting motility and acrosome reaction processes. While supplementation may improve parameters in deficient individuals, indiscriminate use is not universally indicated.
Assessment of vitamin D status forms part of erotic comprehensive endocrine evaluation in andrology.
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