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Lung cancer associated with beta-carotene supplementation in smokers.

Abstract
A meta-analysis of four randomised trials in a total of 109 394 subjects showed a statistically significant increase in the risk of lung cancer among smokers who used dietary supplements containing beta-carotene, at a mean dose of 20 to 30 mg/day. This contradicts the results of observational studies conducted in the 1990s.
Authors
JournalPrescrire international (Prescrire Int) Vol. 19 Issue 107 Pg. 121 (Jun 2010) ISSN: 1167-7422 [Print] France
PMID20738040 (Publication Type: Journal Article)
Chemical References
  • beta Carotene
Topics
  • Dietary Supplements
  • Humans
  • Lung Neoplasms (etiology)
  • Smoking (adverse effects)
  • beta Carotene (administration & dosage, adverse effects)

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