Dr. Anthony Komaroff in his article titled "Right Level of vitamin D is source of controversy" says (paraphrased) that it is by no means clear that raising your vitamin D level is good for your health.
I'd submit then that Dr Komaroff is not looking very hard. There is tons of evidence that raising your vitamin D levels is important and healthful. If interested in seeing much of that research go to www.grassrootshealth.net for information. Furthermore, the amounts he is recommending will not raise your vitamin D levels appreciably.
John Sowinski R.Ph.
Custom Health Pharmacy