I've read of a condition where, if one were to stop his dose of Vitamin C for one day, he would suffer from "rebound scurvy." I don't worry about this effect at all, as I'm diligent enough to take my high dose every day. However, a friend of mine, who is in good health, expressed interest in Vitamin C. I somewhat strained to recommend a dosage for him, as I'm probably unqualified to answer. I take anywhere from four to six grams a day; I'm in good health, but suffer from allergies. I find that six grams a day pretty much keeps my allergies at bay. For this I am most grateful and am recommending Vitamin C to those close to me.
However, this friend is afraid of the reboud effect. What I told him was this: "I don't know how high your dose would have to be for you to suffer from a rebound effect." For example, if he took only two grams a day, and then skipped a day, would he suffer a rebound effect? If not, what dose would be high enough to trigger this condition?
He should just not miss a day; that much is obvious, but I can't force people to take their vitamins. Even my girlfriend skips days. I pretty much forced her to start taking them as she has slightly high blood pressure, and she easily stresses out.