Mega-dose vitamin C in treatment of the common cold: a
2001年10月1日 · Objective: To determine the effect of large doses of vitamin C in the treatment of the common cold. Study design: Double-blind, randomised clinical trial with four intervention arms: vitamin C at daily doses of 0.03g ("placebo"), 1 g, 3g, or 3g with additives ("Bio-C") taken at onset of a cold and for the following two days.
Myth Buster: Do Extra Doses of Vitamin C Really Ward Off a Cold?
2009年2月11日 · Taking megadoses of vitamin C—between 1,000 and 5,000 milligrams (mg)—doesn’t do anything to prevent or shorten the duration of colds, the flu, or other winter maladies.
The effectiveness of vitamin C in preventing and relieving the …
Vitamin C in megadoses administered before or after the appearance of cold and flu symptoms relieved and prevented the symptoms in the test population compared with the control group.
Vitamin C reduces the severity of common colds: a meta-analysis
2023年12月11日 · Compared to placebo, vitamin C significantly decreased the severity of the common cold by 15% (95% CI 9–21%). The direct comparison of the effect of vitamin C on mild and severe symptoms was limited to five comparisons which found that vitamin C had a significant benefit on the duration of severe symptoms.
Vitamin C for preventing and treating the common cold - PMC
2021年5月3日 · Vitamin C (ascorbic acid) for preventing and treating the common cold has been a subject of controversy for 70 years. To find out whether vitamin C reduces the incidence, the duration or severity of the common cold when used either as a continuous regular supplementation every day or as a therapy at the onset of cold symptoms.
High-dose vitamin C could cut common cold (and other
2017年4月4日 · Very high doses of vitamin C could reduce the duration of common cold, finds a review of previous clinical data that calls for new trials to help find ‘optimum dosing’. A huge amount of animal data has found significant effects for vitamin C in the prevention and alleviation of symptoms of infections, including the common cold.
Mega-dose vitamin C in treatment of the common cold: a …
Our study found no significant differences in severity or duration of cold symptoms between groups who took low-dose (placebo) and high-dose vitamin C as treatment for the common cold. The lack of benefit from high-dose therapeutic vitamin C is consistent with the findings of four other randomised controlled trials 2-5 (Box 1) .
Megadose vitamin C in treatment of the common cold: a …
2002年3月1日 · Systemic vitamin C supplementation reduced the size of corneal opacity resulting from infectious keratitis and intravenous vitamin C was more beneficial than oral supplementation, especially in younger patients and those with hypopyon.
Mega‐dose vitamin C in treatment of the common cold: a …
2001年10月1日 · Double-blind, randomised clinical trial with four intervention arms: vitamin C at daily doses of 0.03 g (“placebo”), 1 g, 3 g, or 3 g with additives (“Bio-C”) taken at onset of a cold and for the following two days.
Megadose vitamin C in treatment of the common cold: a
2002年3月18日 · Common Cold / drug therapy* Humans Randomized Controlled Trials as Topic Research Design