Sunlight is the primary way to get vitamin d, although taking certain nutritional supplements — like cod liver oil — can also help.

阳光是获取维生素d的主要途径，此外，摄取一些营养补充剂如鳕雨鱼肝油也会有所帮助。

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The present systematic review updates and reassesses the benefits and harms of vitamin D supplementation used in primary and secondary prophylaxis of mortality.

现行的系统性回顾已更新且重新评估了维生素 D 的补充在初级和次级预防死亡率中的好处与坏处。

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Objective To study the association between the polymorphisms of vitamin D receptor (VDR) gene and autoimmune liver diseases and (AIH) and primary biliary cirrhosis (PBC) in Chinese.

目的探讨维生素D受体（VDR）基因多态性与中国人自身免疫性肝炎（AIH）和原发性胆汁性肝硬化（PBC）发病的相关性。

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If the pilot study is successful in its primary aim - increasing vitamin intake - then Prof Deveraux and his team plan to carry out a much larger trial in over 1, 000 women.

BBC: 'Super soup' test in asthma trial

Doctors recommend women figure out with their primary doctors how much calcium and vitamin D they are getting from food and either make adjustments to their diets or add separate supplements of both nutrients to get to recommended daily intake of each.

WSJ: Vitamin D and Calcium Supplements May Not Stop Fractures