I’m not much of a fan of fasted anything. From what I’ve read it might only serve a good purpose for weightloss, but the risks for detriment to your body seem to high for me. I agree with what Scott said. Go fasted to a point, then have a bite.

At Uphill Athlete we have seem very positive results of fasted training on hundreds of mountain athletes. It needs to adjusted to gradually and with some caveats.

1) The most significant of which is slowed recovery from workouts. Deeply depleting glycogen stores during prolonged low intensity sessions will mean that recovery (the restoration of those stores) will take significantly longer. If you do train this way, be sure to get some carbs on board as soon as possible when you finish.

2) Train on Fat BUT Race on Carbs is our standard recommendation. By “Race” we mean any important event. Say you do some of your early morning runs in a fasted state but on Saturday are planing on an all day alpine climb. Even though most of that day will be spent at a low intensity you should NOT do this fasted if you hope to perform well.

For those interested in see what a highly skilled and highly trained and very well fat adapted athlete can accomplish partly due to this fat adaptation here are a couple of articles:

Fasted training, like any training needs to be carefully integrated into a plan to give the best results.

Scott

Apologies. I didn’t fully read Scott’s post before I asked my question and he had already covered it. Thanks for this resource!