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Non-nutritive Sweeteners

Implications for Consumption in Athletic Populations

Machek, Steven B. MS; Willoughby, Darryn S. PhD

Strength & Conditioning Journal: August 2019 - Volume 41 - Issue 4 - p 112–126
doi: 10.1519/SSC.0000000000000469
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ABSTRACT NON-NUTRITIVE SWEETENERS (NNS) ARE COMMERCIALLY USED TO ENHANCE PALATABILITY WITHOUT INCREASED SUGAR AND/OR CALORIES IN AN ATTEMPT TO CONTROL BODY WEIGHT AND/OR BLOOD GLUCOSE. RECENTLY, ATHLETES AND FITNESS ENTHUSIASTS ARE CONSUMING MORE NNS; HOWEVER, NOT WITHOUT CONCERN FOR SATIETY, GLUCOSE CONTROL, AND GENERAL PHYSIOLOGICAL ADAPTATIONS. THIS ARTICLE AIMS TO COMPREHENSIVELY EVALUATE THE METABOLIC IMPACTS OF NNS IN CELL CULTURE, ANIMAL MODELS, AND HUMANS, AS WELL AS ESTABLISHING CONSIDERATIONS FOR THOSE SEEKING OPTIMAL PERFORMANCE AND BODY COMPOSITION. APPROXIMATELY 80 ARTICLES WERE IDENTIFIED AND REVIEWED USING 29 SEARCH TERMS. OVERALL, NNS CONSUMPTION HAS THE PROPENSITY TO EITHER AUGMENT OR HINDER EXERCISE ADAPTATION.

Exercise and Biochemical Nutrition Laboratory, Department of Health, Human Performance, and Recreation; Robbins College of Health and Human Sciences, Baylor University, Waco, Texas

Address correspondence to Darryn S. Willoughby, Darryn_willoughby@baylor.edu.

Conflicts of interest and source of funding: The authors report no conflicts of interest and no source of funding.

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Steven B. Machekis a doctoral student at Baylor University.

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Darryn S. Willoughbyis a professor and the Director of the Exercise & Biochemical Nutrition Laboratory at Baylor University.

© 2019 by the National Strength & Conditioning Association