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A critical review of recommendations to increase dietary protein requirements in the habitually active.
MedLine Citation:
PMID:  22340626     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Some scientists and professional organisations have called for an increase in dietary protein for those who reach a threshold level of exercise, i.e. endurance athletes. But there are individual scientists who question this recommendation. Limitations in the procedures used to justify changing the recommended daily allowance (RDA) are at issue. N balance has been used to justify this increase; but it is limiting even when measured in a well-controlled clinical research centre. Experimental shortcomings are only exacerbated when performed in a sports or exercise field setting. Another laboratory method used to justify this increase, the isotope infusion procedure, has methodological problems as well. Stable isotope infusion data collected during and after exercise cannot account for fed-state gains that counterbalance those exercise losses over a 24 h dietary period. The present review concludes that an adaptive metabolic demand model may be needed to accurately study the protein health of the active individual.
Authors:
Linda S Lamont
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-20
Journal Detail:
Title:  Nutrition research reviews     Volume:  -     ISSN:  1475-2700     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9113797     Medline TA:  Nutr Res Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-8     Citation Subset:  -    
Affiliation:
Department of Kinesiology, University of Rhode Island, Kingston, RI, USA.
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