晒太阳的最佳地点是户外，因各种原因必须在室内晒太阳，也一定要打开窗子，让阳光直接与皮肤接触。“Vitamin D is produced when sunlight touches our skin， and very few foods in nature contain vitamin D， with fortified foods – primarily cow's milk – being responsible for most of the vitamin D in the American diet，” said Jamie McManus， Shaklee's Chair of Medical Affairs. “As daylight savings time ends， we have less opportunity to absorb vitamin D through sunlight. Therefore， people should supplement their vitamin D intake， especially during winter.” 美国营养品公司嘉康利医学事务主席杰米·麦克马纳斯称:“当阳光照射皮肤时，人体就会产生维生素D，自然界中含有维生素D的食物较少，而牛奶是美国人饮食中维生素D的主要来源。
大家都知道维生素D对骨骼健康至关重要，而获取维生素D最简单的方法就是正确地晒太阳。医生建议，每周至少2次进行5分—30分的户外活动，活动期间保证上肢和下肢皮肤裸露在外，才能够保证人体获得比较充分的维生素D。
