Humans are one of the few species of mammals which lack the ability to synthesize vitamin C. A deficiency of vitamin C broadly affects the various key aspects of one’s immune system. While the Food and Drug Administration’s “Recommended Daily Allowance” of 60 mg. is certainly sufficient to prevent one from developing scurvy, there is ample evidence going back to the Nobel Prize winner, Linus Pauling, that up to 2,000 mg. three times per day is what may be necessary for maximum health benefits such as resistance to cancer.
Your support group moderator had the opportunity to have his free circulating prostate cancer cells cultured and subjected to 46 different anticancer botanical agents. Vitamin C achieved a 25% kill rate on my specific genetic variation of prostate cancer.