I live in an area of the country that gets some of the lowest amount of direct sunlight. I asked my doc about Vitamin D deficiency and he said it's not worth te

I live in an area of the country that gets some of the lowest amount of direct sunlight. I asked my doc about Vitamin D deficiency and he said it's not worth testing. I got tested anyway and it was low even with me taking 2000iu a day. I think I take 8000 now.