Sports Medicine

, Volume 27, Issue 2, pp 97–110

Dietary Supplements and the Promotion of Muscle Growth with Resistance Exercise

Authors

  • Richard B. Kreider
    • Exercise and Sport Nutrition Laboratory, Department of Human Movement Sciences and EducationThe University of Memphis
Review Article

DOI: 10.2165/00007256-199927020-00003

Cite this article as:
Kreider, R.B. Sports Med (1999) 27: 97. doi:10.2165/00007256-199927020-00003

Abstract

Nutritional strategies of overfeeding, ingesting carbohydrate/protein before and after exercise, and dietary supplementation of various nutrients [e.g. protein, glutamine, branched-chain amino acid, creatine, leucine, β-hydroxy β-methylbutyrate (β-HMB), chromium, vanadyl sulfate, boron, prasterone (dehydroepiandrosterone [DHEA]) and androstenedione] have been purported to promote gains in fat-free mass during resistance training.

Most studies indicate that chromium, vanadyl sulfate and boron supplementation do not affect muscle growth. However, there is evidence that ingesting carbohydrate/protein prior to exercise may reduce catabolism during exercise and that ingesting carbohydrate/protein following resistance-exercise may promote a more anabolic hormonal profile. Furthermore, glutamine, creatine, leucine, and calcium β-HMB may affect protein synthesis.

Creatine and calcium β-HMB supplementation during resistance training have been reported to increase fat-free mass in athletic and nonathletic populations. Prasterone supplementation has been reported to increase testosterone and fat-free mass in nontrained populations. However, results are equivocal, studies have yet to be conducted on athletes, and prasterone is considered a banned substance by some athletic organisations.

This paper discusses rationale and effectiveness of these nutritional strategies in promoting lean tissue accretion during resistance training.

Copyright information

© Adis International Limited 1999