Department of Endocrinology and Diabetes, Birmingham Children's Hospital, Birmingham, UK.
Arch Dis Child. 2016 Feb;101(2):190-2. doi: 10.1136/archdischild-2014-307214. Epub 2015 Aug 31.
Vitamin D is vital for bone health and its deficiency deemed as a disease of the past has re-emerged as an important health concern. Exposure of the skin to solar ultraviolet B radiation is the major source of vitamin D and only a small proportion is derived from dietary intake. We review the various factors that influence the cutaneous synthesis of vitamin D and the recommendations regarding safe sun exposure and dietary supplementation to achieve adequate vitamin D levels proposed for optimal bone health.
维生素 D 对骨骼健康至关重要，其缺乏曾被认为是过去的疾病，但现已重新成为一个重要的健康关注点。皮肤暴露于太阳紫外线 B 辐射是维生素 D 的主要来源，只有一小部分来自饮食摄入。我们回顾了影响皮肤合成维生素 D 的各种因素，以及为了获得最佳骨骼健康所需的维生素 D 水平而提出的关于安全日晒和饮食补充的建议。
