[AlaskaAngel]

Yes, but:

"Marshall's research has demonstrated how ingested vitamin D can actually block VDR activation, the opposite effect to that of Sunshine."

That is what I've wondered -- whether the vitamin D in supplements actually might work differently than the vitamin D in real sunshine. From that one sentence in the report, it sounds like real sunshine vitamin D does work. I've stayed with going out and spending the time baring skin to get the real sunshine ever since diagnosis (in my case, especially because I live so far north and there is so little sun in winter here that I grab whatever there is of it).

I have read that it is also important to get the sunshine that comes through the eyes and affects the pineal gland, which then affects the production of melatonin hormone, and perhaps other processes as well. I wonder if that part of the real sunshine effect is what makes whatever immunity difference there is between taking supplemental vitamin D and taking real sunshine. That is also why, even though I am inclined to nap in the sunshine, or at the very least, close my eyes, I keep them open and I do not wear sunglasses. It is important not to look directly at the light of course, but the reflected light is what I try to get.

AlaskaAngel

(P.S. Where oh where have the endocrinologists gone....)