How Long Into A Run Before You Start Burning Fat?

I believe its 20mins, before that its just enzyme breakdown. I could be wrong?

 

It doesn't matter.

If you stay in the 'fat burning zone' during a cardio session, then you're just going to use more carbs later in the day. If you use more glycogen during a cardio session, you will use more fat later in the day.

http://alanaragon.com/myths-under-the-microscope-the-fat-burning-zone-fasted-cardio.html

 

****ing lol

 

enzyme breakdown, lol that's a new one for me

 

Slowly but surely I'm starting to realize that everything I learned in my high school PE/weight lifting classes is wrong.

 

Good.

 

dafaq............