As I understand it, you can't get vitamin D from diet anyway.....it's mostly from exposure to sunlight. Also, it's not really a vitamin, it's a proto-hormone.

I've been taking 6,000 IU/day for a couple of years and I think it is likely contributing to my overall good health. Or, at least, it hasn't hurt me any!

Traditional medical advice sometimes still freaks at those numbers, but there seems to be a strong shift going on currently, so if you see advice to the contrary, keep looking.

Good luck!

-Seth

47 yr old male non-smoker, social drinker, fit. Jan'10, Stg3 rt tonsil+rt neck SCC, HPV+, rad+chmo Vancouver Cda. 2yr clear Apr'12 London UK. Apr'13 mets recur to lymph btw left lung & aorta, 3x Cisplatin+5FUchemo+20 rad, was all clear but 6-mo PET-CT shows mets to pleura around left lung, participating in St 1 trial of GDC-0980. GDC lost effect and ended July'14, bad atrial fibrillation requiring hospitalisation, start more standard chemo 10 Sep 2014.
Sadly has passed away, notified Jan 2015.