Originally Posted by WhyFi

A big part of it is to do rides fasted (on an empty stomach). I'm sure that LAJ is far better adapted than me, but I've been doing morning rides with little-to-nothing in my stomach for a few years and no longer have a problem doing a metric with anything other than water/nuun/whatever. I think that the basic premise is that you need to moderate your effort and limit your body's access to easy energy stores so that it turns to the fat stores for fuel. I think that, for the best effect, you really need to limit your carb intake, too, but I'm too attached to that stuff to cut it out completely. Maybe one day I'll get serious.