I read it to be saying that even in the north, (I live in Seattle) you are fine with the vitamin D from your diet and the sun that you get. However, I can't se

I read it to be saying that even in the north, (I live in Seattle) you are fine with the vitamin D from your diet and the sun that you get. However, I can't see how that's possible. For at least two months of the year, I basically only see the sun on weekends, and it's usually cloudy. (Plus, I don't eat the vitamin D fortified foods they mention, but that's probably not true for most people here).