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:

1. Dr. Sam Impey, PhD -> Carb Periodization & Endurance

2. Dr. Graeme Close, PhD -> Carb Periodization & Team Sport

3. Dr. Stephan van Vliet, PhD -> Red Meat & Health

4. Dr. Keith Baar, PhD -> Collagen & Joint Health

5. Dr. Matt Frakes, PhD - Concussion Nutrition

6. Dr. Patrick O’Halloran, MD, PhD - Concussion Biomarkers

7. Gozo Grgic, PhD(c) -> Caffeine & Performance

8. Dr. Michael Gleeson, PhD -> Immunity & Athletes

9. Dr. Michael Gervais, PhD -> Mindset & Mental Performance

...

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