转：从11月到2月，波士顿人无法从阳光获得半点维生素D，挪威更惨

来源: 于 2020-10-31 19:27:47 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

For example, people who live Boston, USA and Edmonton, Canada struggle to make any vitamin D from sunlight between the months of November and February (13Trusted Source).

People in Norway cannot make vitamin D from sunlight between October and March (14Trusted Source).

During this time of year, it’s important that they get their vitamin D from foods and supplements instead.