The Naked Scientists

The Naked Scientists Forum

Author Topic: Blood sugar burn vs Fat burn  (Read 3410 times)

Offline Leah Deal

  • First timers
  • *
  • Posts: 3
    • View Profile
Blood sugar burn vs Fat burn
« on: 18/10/2005 06:06:29 »
Hi,
I heard on another PodCast, 2BaRunner, that during the first 20 minutes of a cardiovascular workout, like running, the body is burning off only blood sugar. It is not unitl after the 20 minutes that you start actually burning fat. I don't know if this is true. However, if it is, does that mean that if you run in the morning before eating, that you burn fat sooner, since the blood sugar is probably lower?
I'd love to hear back from you. The show is great!
Thanks for all your knowledge.
From Minneapolis, MN with regards,

Leah Deal


 

Offline Les the Scientist

  • Jr. Member
  • **
  • Posts: 39
    • View Profile
Re: Blood sugar burn vs Fat burn
« Reply #1 on: 19/10/2005 22:30:26 »
I read an interview in men's health magazine that said exactly that.  This guy said that he never ever ate anything before exercising because the body burns it's fat instead of the energy released from the food in his stomach.  So I say it's true !
 

Offline thefunkyaquarium

  • First timers
  • *
  • Posts: 4
    • View Profile
    • http://www-jcsu.jesus.cam.ac.uk/~lw310
Re: Blood sugar burn vs Fat burn
« Reply #2 on: 19/10/2005 22:45:45 »
I've read that as well, in several places.  However, beware that since you're "running on empty", you won't be able to exercise as efficiently as if you ate something before the activity.

My rower friend tells me, you should eat slow-release foods before exercise (e.g. bananas, porridge) and fast-release foods after exercise (e.g. glucose drinks, jaffa cakes) for a fast recovery.
 

Offline Leah Deal

  • First timers
  • *
  • Posts: 3
    • View Profile
Re: Blood sugar burn vs Fat burn
« Reply #3 on: 20/10/2005 22:39:04 »
Thanks! Your remarks are really informative.

Leah Deal
 

The Naked Scientists Forum

Re: Blood sugar burn vs Fat burn
« Reply #3 on: 20/10/2005 22:39:04 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums