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Sports (Basel). 2017 Mar 24;5(2). pii: E21. doi: 10.3390/sports5020021.

Sports Nutrition Knowledge, Perceptions, Resources, and Advice Given by Certified CrossFit Trainers.

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Department of Nutrition and Health Science, College of Health, Ball State University, Muncie, IN 47306, USA.
Training Think Tank, 11445 N Fulton Industrial Blvd Alpharetta, GA 30009, USA.
Department of Nutrition and Health Science, College of Health, Ball State University, Muncie, IN 47306, USA.



CrossFit is a large, growing force in the fitness community. Currently, Level 1 and 2 CrossFit certification classes do not include nutrition education. The purpose of this study was to identify sports nutrition knowledge, perceptions, resources, and advice given by Certified CrossFit Trainers.


An online questionnaire that measured these four constructs was placed on a private Facebook community, open only to certified CrossFit trainers, for 10 days.


Complete surveys were obtained from 289 CrossFit trainers. The mean Sport Nutrition Knowledge (SNK) score was 11.1 ± 2.1, equivalent to 65.3% ± 12.4% correct. The trainers perceived nutrition to be extremely important to athletic performance (9.4 ± 0.9 on a 10 point scale). Overall, the trainers graded their SNK higher than that of their CrossFit peers. The internet and CrossFit peers were the most frequently reported sources for nutrition information; Registered Dietitians were the least reported source. The Paleo and Zone diets were the most common dietary regimens recommended by CrossFit trainers. Results indicated a positive correlation between a CrossFit trainer's self-reported hours of nutrition education and their SNK score (r = 0.17; p < 0.01).


Nutrition education modules for Level 1 and 2 CrossFit trainers, developed with input from Board Certified Specialists in Sports Dietetics, are recommended.


Board Certified Specialist in Sports Dietetics (CSSD); CrossFit trainers; Paleo diet; Registered Dietitians (RD); sports nutrition knowledge

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