http://health.usnews.com/health-news/managing-your-healthcare/diabetes/articles/2010/03/25/why-you-may-not-need-that-vitamin-d-test-after-all.html
不过如果你很少晒太阳的话可能还是应该补一点。不一定吃药片,吃点富含VD的食品或VD强化牛奶和橙汁就行了。