Vitamin E and respiratory tract infections in elderly nursing home residents: a randomized controlled trial.
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Link to full study
http://www.ncbi.nlm.nih.gov/pubmed/15315997
Conclusion of this study
Supplementation with 200 IU per day of vitamin E did not have a statistically significant effect on lower respiratory tract infections in elderly nursing home residents. However, we observed a protective effect of vitamin E supplementation on upper respiratory tract infections, particularly the common cold, that merits further investigation.
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