Document Detail

Effect of vitamin C supplements on physical performance.
MedLine Citation:
PMID:  22777327     Owner:  NLM     Status:  In-Data-Review    
Vitamin C is an essential component of the diet and may reduce the adverse effects of exercise-induced reactive oxygen species, including muscle damage, immune dysfunction, and fatigue. However, reactive oxygen species may mediate beneficial training adaptations that vitamin C attenuates; indeed, from a total of 12 studies, vitamin C in doses >1 g·d impaired sport performance substantially in four of four studies, possibly by reducing mitochondrial biogenesis, while a further four studies demonstrated impairments that were not statistically significant. Doses of ∼0.2 g·d of vitamin C consumed through five or more servings of fruit and vegetables may be sufficient to reduce oxidative stress and provide other health benefits without impairing training adaptations.
Andrea J Braakhuis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Current sports medicine reports     Volume:  11     ISSN:  1537-8918     ISO Abbreviation:  Curr Sports Med Rep     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101134380     Medline TA:  Curr Sports Med Rep     Country:  United States    
Other Details:
Languages:  eng     Pagination:  180-4     Citation Subset:  IM    
U.S. Olympic Committee, Sport Performance, Olympic Training Center, Chula Vista, CA.
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