jhaddad8

I have been interested in ketogenic diets for endurance for several years now but have never tried one. One of the reasons being I always thought they sounded to good to be true, the other being that I am a vegetarian, and that would complicate things further. But, I've recently picked up Mark Sisson's "Primal Endurance". I'm going to give it a try (although I am still learning exactly what that what is). Has anyone here been on a low carb high fat diet. How did it work? Did it make randonneuring impossible? How was the transition?

I do a 200k brevet every month and am particularly worried about the first ride when I'm still new to this. Any advice or personal anecdotes would be greatly appreciated.

chandltp

If you listen to Vinnie Tortorich, he'll talk about the "sugar trickle" when he's on hard climbs. But he generally advocates a ketogenic diet for athletes.

You might also want to read The Art and Science of Low Carbohydrate Performance

I made the transition a few years ago. For me, it took about 6 months to really be ready for any long rides. But after that, it was nice to be able to ride all day with minimal fuel.

thebulls

Another potential resource is "The Paleo Diet for Athletes" by Cordain and Friel:
https://www.amazon.com/Paleo-Diet-At.../dp/160961917X

Here's a summary:
A Quick Guide to the Paleo Diet for Athletes | TrainingPeaks