Quote Originally Posted by Yelsel View Post
More into endurance, but the body gets more efficient at using fatty acids for fuel (higher fat / glycogen percentage) - to preserve glycogen stores.
Great post Yelsel! Seems very comprehensive. I wanted to see if you can clarify the statement above. Are you saying that...for endurance athletes, over time, the body is turning to fatty acids in food for fuel, as opposed to sugars from carb laden foods?
I have always been curious about this aspect of fueling your workout.

I am primarily a gym rat, lifting is what I fuel for, and indoor riding is my cardio...but going out on trails I find my fuel obviously isn't sufficient. One could argue that is because I have so much mass to carry around...but to a point one's fuel should be able to sustain a similar performance between two equally fit athletes...or not?