While Vitamin D has been discussed in recent years in the context of various health issues such as infertility and weight management, its effects in these areas are not yet fully proven. Specifically, claims that Vitamin D deficiency directly causes cancer can lead to unnecessary concern. However, Vitamin D's primary and critical role is in maintaining bone health. Especially during and after menopause, Vitamin D is vital for preserving the strength of bone structure. During this period, Vitamin D deficiency can increase the risk of bone fractures even from simple falls and may lead to issues like height loss. Therefore, when adequate nutrition and sunlight exposure are insufficient, appropriate doses of Vitamin D supplementation are recommended.