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Abstract

Purpose: Research shows the benefits of whey isolate protein powder and casein protein powder supplementation in regard to body composition and resting metabolic rate; however, minimal research exists comparing the effectiveness of whey to casein supplementation. Methods: Eighteen (18) physically trained, healthy individuals (23±3.1 yrs.; 171.7cm; 12 males; 6 females) completed a randomized two condition [Combat 100% Isolate (Whey) versus Combat 100% (Casein)] by two time point [Pre-, Post-] intervention. The intervention consisted of subjects supplementing on either whey or casein in conjunction with resistance training over an 8-week period. Pre and post testing included % body fat and metabolic rate. Results: A 2x2, repeated-measures analysis of variance (ANOVA) demonstrated non-significant (p ≥ 0.05) effects on changes in % body fat and resting metabolic rate following the 8-week intervention. Conclusions: The data concludes no differences in the effects of whey versus casein protein supplementation in physically active, healthy individuals

Author Bio(s)

Nyles V. Rife, MS, CSCS, CISSN, is a Graduate Exercise and Sports Science student in the Dr. Pallavi Patel College of Health Care Sciences at Nova Southeastern University in Ft. Lauderdale, FL.

Tobin Silver, PhD, CSCSAssociate Professor and Practicum Director, Exercise and Sport ScienceDepartment of Health and Human Performance at Nova Southeastern University in Ft. Lauderdale, FL.

Jose Antonio PhD CSCS FNSCA FISSNExercise and Sport Science Associate Professor Dr. Pallavi Patel College of Health Care Sciences at Nova Southeastern University in Ft. Lauderdale, FL.

Corey Peacock PhD, CSCS, ACSM-CPT, CISSN Program Director, Associate Professor Exercise and Sports Science Department of Health and Human Performance at Nova Southeastern University in Ft. Lauderdale, FL.

Acknowledgements

We would like to thank all the participants and researchers who contributed to the research studies and reviews.

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