[rossenberg79]

I stopped doing fasts because even though I did notice a boost to my productivity, most of it was due to not having to stop in the middle of the day to eat or waste time thinking about eating. In terms of cognitive benefits, going for a run for 30 minutes in the morning still seemed far superior.

[bluedino]

>> going for a run for 30 minutes in the morning still seemed far superior

Why not both?

[Goronmon]

Fasting combined with exercise sounds like a recipe for overeating after the fact.

[mcfunk]

Once the body gets habituated to using fat stores for energy rather than glucose or glycogen, there's no particular need or urge to eat after exercise.

[rossenberg79]

What if you are low on fat stores?

[phonypc]

Define low.

Unless you're a competitive body builder on show day, you've probably got enough fat to cover a few weeks worth of energy needs.

[rossenberg79]

12% is not that low, but hardly weeks worth of energy needs.