Body IO® FM #33 | Mark Sisson: Paleo or Primal?

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What is the difference between the Paleo and Primal lifestyle?
Why should you not overthink your diet?
In today’s episode of Body IO FM, we speak to author, Mark Sisson, to learn the difference between Primal and Paleo eating. We also discuss, among other topics, why many athletes have changed to a ketogenic type diet for increased performance.
Mark Sisson is an American fitness author and a former distance runner, triathlete and Ironman competitor. He is also the founder of Primal Nutrition, Inc., a company devoted to health education and designing state-of-the-art supplements that address the challenges of living in the modern world.
To learn more about Mark Sissons’ blog and certification program, click the following links:
1. Mark Sisson’s blog.
2. Mark Sisson’s certification program.


Like what you’re listening to? Get the transcript here.


Physicist turned nutrition and performance scientist. Currently considered one of the industry’s leading experts on human metabolism.

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  • Hey guys great podcast! What about strength sports not so endurance oriented? What happens when you are more fat/keto adapted? do you stall, loose or increase power production?

  • Loved the tidbit at the very tail end — the thing about Rocky saying his weight goes up on day 2, the discussion around it, its resolution. Not for the topic itself, but the idea of such end-of-segment outtakes is excellent. Like bloopers, but informative. Like an easter egg 🙂


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