Welcome to Powerplay

Self-employed since 1995 (as Power Play: Nutrition, Fitness, Performance) in the health and fitness industry. Nanci is a Registered Dietitian, Personal Trainer and an NSCA Certified Strength and Conditioning Specialist currently working on her PhD in “Nutritional Science, Genetics and Athletic Performance” at the University of Toronto. Nanci specializes in advanced sports nutrition as an international consultant, and she is currently researching high performance athletes and their unique genetic response to dietary nutrients and supplements based on their genotype (DNA). Her research will also look at associations of performance and body type to sport/muscle function genes in this athletic population. Nutrigenomic testing (saliva test – see genetic testing page) including your genetic response to 7 key nutrients as well as the first ‘gluten sensitivity’ genotype test are now being offered. Research for evidence-based modifications based on diet and training genetic testing for high performance athletes is currently underway. Stay tuned!

What’s New

Poster presented at International Society of Sports Nutrition Annual Meeting June 2015, Austin, Texas

Title: Genetic variation related to caffeine metabolism or response during exercise

Outcome: Certain genotypes are associated with higher heart rate during exercise after caffeine ingestion

Nanci Guest_Caffeine and HR_Womack_Poster June 2015_FINAL_To_Print_June 9th


Nutrition • Training • Genetics

Toronto: 416.873.3312  |  Vancouver: 604.818.8348