S.M.
Here's what I know. I don't have this book anymore so I'm sorry I don't have the name of the study. But I once read that Vitamin C has been studied with AIDS patients that were actively sick. I don't know much about the T-cells. I forget if they are supposed to be high or low. What I remember is that they had the patience find the tolerance level. They would take 1000 every hour on the hour until they felt the first twinges of loose stools coming on. Then they would cut it back to just an amount that their body would tolerate without loose stools. When they did this for weeks on end and checked their t-cells, they improved quite a lot. Interestingly enough, the higher their infection rate, (any type of infections they were fighting at the time), the more Vitamin C their body could tolerate. When they were in a phase with less infection, their body needed or could tolerate a lower amount.
I've suffered from infections the doctors could not find. My SED rate would go up and they explained that it shows there is infection in the body. But they didn't know where. I've had teeth infections and other infections. When I am having infections my tolerance has been as high as 22,000 milligrams per day. But the last time I found my tolerance level when I had no active infection that I know of, my tolerance level was 12,000 milligrams per day.
Further... I've been told by a dentist to take 6000 miligrams per day for 6 weeks and then 3000 per day the rest of your life in order to have strong capillaries, gums that never bleed, and so that the risk of heavy bleeding after birth is not so high.
I strongly believe that Vitamin C is a miracle drug.
I also read a study once that high amounts act like an antihistamine in the body and that is the reason people think it helps colds.