In Season 7, Episode 20, Marc celebrates 1 Million downloads of the Performance Nutrition Podcast with a 'highlights' episode featuring experts from the first 10 seasons:
Dr. Sam Impey, PhD -> Carb Periodization & Endurance
Dr. Graeme Close, PhD -> Carb Periodization & Team Sport
Dr. Stephan van Vliet, PhD -> Red Meat & Health
Dr. Keith Baar, PhD -> Collagen & Joint Health
Gozo Grgic, PhD(c) -> Caffeine & Performance
Dr. Michael Gleeson, PhD -> Immunity & Athletes
Dr. Michael Gervais, PhD -> Mindset & Mental Performance
...
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