After their random-llocation to one of three treatment aroups, 622 volunteers received either
vitamin C or placebo in a maintenance dose of 500 mg once weekly and a therapeutic dose …

Abstract Between December 1972 and February 1973, 2349 volunteers participated in a
double-blind trial to assess the effect of large doses of vitamin C on the incidence and …

A large scale double-blind trial was conducted to test the claim that the intake of one gram of
vitamin C per day substantially reduces the frequency and duration of “colds”. It was found …

Professor Linus Pauling has drawn our attention to certain inconsisten-cies in some of the
figures that appeared in our recent paper" Vitamin C and the common cold: a double-blind …

A large number of placebo-controlled studies have shown that vitamin C supplementation
alleviates the symptoms of the common cold, but widespread skepticism that vitamin C could …

In 1975 Thomas Chalmers analyzed the possible effect of vitamin C on the common cold by
calculating the average difference in the duration of cold episodes in vitamin C and control …

The effect of vitamin C on the common cold has been the subject of several studies. These
studies do not support a considerable decrease in the incidence of the common cold with …

Although the role of vitamin C in common cold incidence had been studied extensively, the
level of vitamin C intake has not been unequivocally shown to affect the incidence of colds …

Since 1971, 21 placebo-controlled studies have been made to establish whether vitamin C
at a dosage of< 1 g/day affects the common cold. These studies have not found any …

Placebo-controlled trials have shown that vitamin C supplementation decreases the duration
and severity of common cold infections. However, the magnitude of the benefit has …