> I also found it interesting that running slowly and/or walking is better for losing weight as running faster primarily uses glycogen (and makes you hungry), a

> I also found it interesting that running slowly and/or walking is better for losing weight as running faster primarily uses glycogen (and makes you hungry), and running slowly primarily uses fat. This presupposes running using glycolysis for energy. Most runners will do this, but there are quite a few ultra runners who use ketosis instead, and derived almost all their energy to run from fat. It's not great if you want to go very fast (say, track and field events), but it has some distinct benefits for very long ultra trail events.