Hi I'm 3 months diagnosed Gluten intolerant and am 2 weeks out from my 2nd Ironman (first gluten-free). I have sought to become "fat adapted" and think that it is working, my run times have dropped drastically (about 45sec/km in 3 weeks).
I currently use a small amount of a product called 32GI endure (1 scoop in a 700ml bidon) over the course of a long...
I'm only 3 months gluten-free but I've found that a FAT BLACK (double shot of espresso, teaspoon of butter and a tablespoon of coconut oil) works wonders. I'm training for ironman triathlons so not really any very high intensity work but still get a good buzz.