Health and fitness expert Mark Sisson is the bestselling author of The Primal Blueprint and one of the leading voices of the Evolutionary Health Movement. His blog, MarksDailyApple.com, has paved the way for Primal enthusiasts to challenge conventional wisdom's diet and exercise principles and take personal responsibility for their health and well-being. Mark's efforts to promote primal living extend to a line of nutritional supplements, a book publishing company, a Primal Kitchen line with healthy mayonnaise, salad dressing, meal replacement and energy bar, and a burgeoning Primal Kitchen fast casual restaurant chain. His new book Primal Endurance applies the primal eating and lifestyle principles to the challenge of endurance training-helping athletes overcome the common conditions of burnout and carbohydrate dependency. We're also happy to announce that Mark will be speaking at the 2016 Bulletproof Conference! On today's episode of Bulletproof Radio, Mark and Dave talk about Primal Endurance, training routines, testosterone, calories, ketosis, stem cells, over-nutrition and more. Enjoy the show!

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