Protein and amino Acid supplementation in athletes

Curr Sports Med Rep. 2002 Aug;1(4):253-6. doi: 10.1249/00149619-200208000-00010.


Amino acid supplementation is practiced by numerous individuals with the hope of increasing muscle mass and function by increasing available proteins. Theoretically, this makes a great deal of sense; the scientific facts, however, fail to conclusively prove that ingesting more than the recommended dietary allowance of protein has any effect on otherwise healthy adults. Athletes may be the exception to this rule. This review examines the most current literature pertaining to amino acid supplementation, and reports on the potential benefits and risks of this common practice.

Publication types

  • Review

MeSH terms

  • Adult
  • Amino Acids / administration & dosage
  • Amino Acids / adverse effects
  • Amino Acids / economics
  • Amino Acids / metabolism*
  • Body Composition / drug effects
  • Dietary Proteins / administration & dosage
  • Dietary Proteins / adverse effects
  • Dietary Proteins / economics
  • Dietary Proteins / metabolism*
  • Dietary Supplements / economics
  • Dietary Supplements / standards*
  • Energy Metabolism / drug effects
  • Humans
  • Muscle, Skeletal / drug effects*
  • Nutrition Policy
  • Physical Endurance / drug effects*
  • Sports*
  • United States


  • Amino Acids
  • Dietary Proteins