When vitamin C was tested for treatment of colds in 7 separate studies, it was found to be no more effective than placebo at shortening the duration of cold symptoms.

While vitamin C may shorten the duration and intensity of colds, the optimal dosage is unknown. However, clinical research ...

The theory that vitamin C protects us against seasonal sniffles is relatively new, with Nobel prize winner Linus Pauling popularizing it in the early 70s. At the same time, he did not have any ...

In 1970, his best-selling book Vitamin C And The Common Cold was published, claiming everyone’s health could be improved by higher levels of the vitamin. And a huge myth was born.

And for most people, taking daily vitamin C supplements before symptoms start also won’t prevent illness, though it could make future colds slightly shorter and less severe.

That’s about a day or two less than the average 14-day cold. Vitamin C may also lessen the severity of symptoms. But… when taken after the onset of cold symptoms, no benefit has been proven.

The Recommended Dietary Allowance (RDA) for vitamin C depends on a handful of factors, including age and sex (for adults): 19 ...

Overall, vitamin C shines brightest as a cold preventative rather than treatment. And Del Junco says if you focus on getting enough of the nutrient in your daily diet, it can help keep you from ...

But a recent tweet called this long-held belief into question and sparked a conversation online about how effective vitamin C supplements are for fighting colds. Years of research show that taking ...

And for most people, taking daily vitamin C supplements before symptoms start also won’t prevent illness, though it could make future colds slightly shorter and less severe.