I don't have an issue with the sun. However, vitamin d supps are little more than steroids. They are being promoted as a godsend, when in truth, all they really do is turn off your immune system over time. I know, because it was one of the things that had a big negative impact on my health. took cod liver oil for years, and felt great. Had no idea what I was doing to myself, just like almost everyone else on the vit d bandwagon. If you look hard enough and read between the line, you can see that what Marshall is saying is correct. vit d makes you feel better precisely because it is inactivating the immune system. the immune system makes you feel miserable because it is trying to do its job. turning it off is the wrong approach.