What is used as energy first???

[ErikW412]

when your body doesnt have enough fuel and it has to rely on something stored what is the first to be used?? Is it fat or muscle or something else??

 

[bigss75]

Glycogen stores

 

[assassin]

fats-carbs-protein...in order

 

[assassin]

i think most low intensity work that we do daily ..like usual movements and walking and grabbing things uses fats as a primary source then glycogen stores when doing higher intensity ....

 

[tucker01]

Fats are not the primary energy source inthe Body. Carbs are.

 

[ErikW412]

so you burn through stored carbs to get to stored fats and then if you still havent replenished your energy you start using stored protein (which tears down your muscles right???)

 

[tucker01]

When cutting, the body likes to try and keep its body fat stores. Thinks it is starving, and would use them as a last resort for survival. Muscles consume the most Calories, so the body will use them up to try and protect its key organs.

 

[Valias]

Fats are not the primary energy source inthe Body. Carbs are.

Really depends on your body at the time. If you go into a gym after just waking up and start working out, maybe the first 10-15 minutes would be glycogen, but you wouldn't have any left, and thus would would force your body into using fat. muscles store gylcogen, so does the liver. But there's a certain amount, and liver glycogen is NEVER used by muscles.

yeah, depending on diet/time/last meal/last activities is all i'm saying. but protein is last on the list to be catabolised.

 

[Pedigree]

fats-carbs-protein...in order

Sorry man, carbs are the primary source for energy.

 

[assassin]

yeah i realized this from other replies...thnx man