In elite endurance athletes adapted to ketosis for over 20 months, muscle glycogen depletion and replenishment during long-duration exercise were similar to carbohydrate-consuming athletes.

“there did a fantastic graph in this group they did muscle biopsies between these two groups and what you see is that the high carb and low carb groups look equivalent when it comes to the amount of glycogen that is in their muscles before exercise the utilization of glycogen when they do exercise and then the replenishment of glycogen”

“the first one I would like to share with you is the faster study the title of the paper is metabolic characteristics of keto adapted ultra endurance runners is finian Volek two of the godfathers in the realm of ketogenic science and research now as I mentioned earlier Ben Greenfield was actually in this study he was one of the ketogenic athletes in the study as was Zack bitter who recently set the record the world record for the 100 mile time around a track I believe he ran it in something like 11 hours for 100 miles so Zack bitter is a very well known ultra endurance runner who practices what I would say is a carnival ish diet and Ben has I think at least in our conversations been doing a carnival race diet much of the time as well he was not doing a carnival rich diet when he did this study but he was doing what I would consider to be a low level ketogenic diet or easy ketogenic diet we need better words here but you guys get the idea this is not a medical ketogenic diet so I'll just cut straight to the chase with this one so they had two groups of people these were ten athletes in each group they were Kido adapted meaning they have been doing a high-fat low-carbohydrate diet for between 6 and 12 months the keto adaptation period is very important when we're thinking about athletes and athletic performance but the high fat low carb group was keto adapted and they compared the two groups in exercise tasks so they had 20 10 of each elite ultra marathoners and Ironman distance triathletes they performed maximal graded exercise tests and they won one hundred and eighty minute submaximal run at 64% vo2 max on a treadmill and what they found in this study was that there was no difference in the glycogen utilization storage or repletion in either of these two groups”

“what they found in this study was that there was no difference in the glycogen utilization storage or repletion in either of these two groups”