dr. Saul didn't cure his pneumonia using vitamin C (post above) under supervision of an MD (he is not an MD).

experts in the field say that their patients take high-dose vitamin C over extended periods and they've never seen a case in which resulted in kidney stones.

I try to take at least 5 g a day when not sick, as much as I can handle when I am sick, and haven't had any problems result that I'm aware of.

as stated in the video ... now working, vitamin C is extremely safe.  

im not sure why high dose IV vitamin C isn't being widely used by doctors to treat illness.  Based on what I've seen I think its probably as effective as claimed.  Some evil profit motive, or power motive I suppose.