Dr. Campbell is a Professor and Director of the Performance & Physique Enhancement Laboratory at the University of South Florida.  

His research focuses on improving exercise performance and physique enhancement within a maintainable lifestyle. His pioneering research includes dietary protein intakes to optimize body composition, rapid fat loss strategies, and diet breaks for physique athletes and bodybuilders. 

Dr. Campbell has authored 3 books on sports nutrition, is the author of over 200 scientific abstracts and manuscripts on topics related to sports nutrition, physique enhancement, and exercise performance, and is the past President of the International Society of Sports Nutrition and an expert legal consultant for the dietary supplement industry. 

He also created ‘Body by Science’—a comprehensive research review summarizing the latest and best research related to building muscle and losing body fat (billcampbellphd.com). You can follow Dr. Campbell’s work and free daily educational items on his Instagram page,@billcampbellPHD