Mark Sisson is a former endurance athlete turned nutrition author and entrepreneur. In 2006, he began his popular health blog, Mark’s Daily Apple, where he’s blogged every day for 12+ years. Mark is the founder of Primal Kitchen Foods and best-selling author of several books including The Primal Blueprint and his most recent hit, The Keto Reset Diet.   Health Theory is a bi-weekly interview show, hosted by Quest Nutrition co-founder, Tom Bilyeu. Each episode offers tactical steps one can take to improve their wellbeing and achieve their goals.   SHOW NOTES: What does primal really mean? [02:19] The importance of dietary fat [05:20] The context of calories [08:08] What is metabolic flexibility [09:42] Endurance training using old technology [12:18] Ketogenics and endurance training [16:44] Does keto allow you to eat less? [19:35] Reframing how you think about sacrifice [23:34] The Keto Reset Diet [29:50] Finding your food limits [34:35] How eliminating grains cured Mark’s IBS [38:46] Why keto may improve your microbiome [43:37] Living awesome [47:25]   MENTIONED IN THIS EPISODE: Primal Endurance: http://amzn.to/2F1X0fJ The Primal Blueprint: http://amzn.to/2BUGZtr The Keto Reset Diet: http://amzn.to/2BVdoA2 Mark’s Daily Apple: http://bit.ly/2F9tyYB Primal Kitchen Foods: http://bit.ly/2p0qB5S The Context of Calories: http://bit.ly/2oALkK1 Phinney & Volek: http://bit.ly/2hZW6F5   FOLLOW MARK SISSON: FACEBOOK: http://bit.ly/20XnWRj INSTAGRAM: http://bit.ly/2CNhNli