Alex McDonald is an endurance athlete who defied conventional wisdom by running five consecutive marathons completely fasted. Despite facing skepticism and negative feedback from family and friends, Alex persisted with conviction and thorough preparation. Seeking advice and support from esteemed medical professionals like Dr. Paul Mason and Dr. Ian Lake, Alex meticulously documented his journey, combating injuries and enduring extreme heat, all while relying on fat reserves for energy. Instagram: @ketomarathons Twitter: @keto_marathons YouTube: @ketomarathons Website: Ketomarathons.com Timestamps: 00:00 Trailer. 00:57 Introduction. 04:05 Running marathons solo. 08:39 Strict carnivore diet and endurance. 11:43 14% body fat. 13:52 Marathon with low heart rate. 16:00 Fat adaptation. 20:01 Anti-inflammatory use and fluid retention. 22:27 Impact of low-carb diets on endurance. 25:10 Five-day fast. 27:08 Fast ketone utilization, easier recovery. 31:37 Mental fortitude. 33:42 Fasting vs. starvation. 36:11 Running fasted. 38:45 Feedback negative. 43:12 Heat and higher heart rate zones. 47:05 Fat efficiency for energy and endurance. 48:40 Diabetic endurance athletes. 51:25 Where to find Keto Marathons. See open positions at Revero: https://jobs.lever.co/Revero/ Join Carnivore Diet for a free 30 day trial: https://carnivore.diet/join/ Carnivore Shirts: https://merch.carnivore.diet Subscribe to our Newsletter: https://carnivore.diet/subscribe/ . ‪#revero #shawnbaker #Carnivorediet #MeatHeals #HealthCreation   #humanfood #AnimalBased #ZeroCarb #DietCoach  #FatAdapted #Carnivore #sugarfree  ‪