Commercial Hype Versus Reality: Our Current Scientific Understanding of Gluten and Athletic Performance

Curr Sports Med Rep. 2016 Jul-Aug;15(4):262-8. doi: 10.1249/JSR.0000000000000282.


Recent explosion in the prevalence of gluten-free athletes, exacerbated by unsubstantiated commercial health claims, has led to some professional athletes touting gluten-free diet as the secret to their success. Forty-one percent of athletes report adhering to a gluten-free diet (GFD), which is four-fold higher than the population-based clinical requirements. Many nonceliac athletes believe that gluten avoidance improves gastrointestinal well-being, reduces inflammation, and provides an ergogenic edge, despite the fact that limited data yet exist to support any of these benefits. There are several plausible associations between endurance-based exercise and gastrointestinal permeability whereby a GFD may be beneficial. However, the implications of confounding factors, including the risks of unnecessary dietary restriction, financial burden, food availability, psychosocial implications, alterations in short-chain carbohydrates (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols), and other wheat constituents emphasize the need for further evaluation.

Publication types

  • Review

MeSH terms

  • Athletic Performance / physiology*
  • Diet, Gluten-Free / methods*
  • Dietary Proteins / metabolism*
  • Eating / physiology*
  • Evidence-Based Medicine
  • Glutens / metabolism*
  • Health Knowledge, Attitudes, Practice
  • Humans
  • Muscle Strength / physiology*


  • Dietary Proteins
  • Glutens