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First published online February 1, 2012

A Combination of High-Dose Vitamin C plus Zinc for the Common Cold

Abstract

Vitamin C and zinc play important roles in nutrition, immune defence and maintenance of health. Intake of both is often inadequate, even in affluent populations. The common cold continues to place a great burden on society in terms of suffering and economic loss. After an overview of the literature on the effects of the separate administration of either vitamin C or zinc against the common cold, this article presents data from two preliminary, double-blind, randomized, placebo-controlled trials, conducted with a combination of 1000 mg vitamin C plus 10 mg zinc in patients with the common cold. In both studies, a nonsignificant reduction of rhinorrhoea duration (range 9 – 27%) was seen. In pooled analyses of both studies (n = 94), vitamin C plus zinc was significantly more efficient than placebo at reducing rhinorrhoea over 5 days of treatment. Furthermore, symptom relief was quicker and the product was well tolerated. In view of the burden associated with the common cold, supplementation with vitamin C plus zinc may represent an efficacious measure, with a good safety profile, against this infectious viral disease.

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Published In

Article first published online: February 1, 2012
Issue published: February 2012

Keywords

  1. Vitamin C
  2. Zinc
  3. Micronutrients
  4. Common cold
  5. Respiratory infections
  6. Immune system

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PubMed: 22429343

Authors

Affiliations

S Maggini
Bayer Consumer Care Ltd, Basel, Switzerland
S Beveridge
Bayer Consumer Care Ltd, Basel, Switzerland
M Sutera

Notes

Author's address for correspondence Dr Silvia Maggini Bayer Consumer Care Ltd, Peter-Merian-Strasse 84, Postbox 4002, Basel, Switzerland. E-mail: [email protected]
a
M Suter is a retired employee of Roche Consumer Health, Basel, Switzerland.

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