Originally Posted by
MonsieurChrono
I mean, the first sentence negates the second one because it suggests that carbs are not needed for energy (as fat already provides for energy), which I'd largely agree with.
While you can "survive" while exercising at a low intensity without taking in carbs, athletes performing at moderate or greater intensities benefit greatly from carb ingestion. There are much data to confirm this, going back decades.
Also, 10 g/hr is well below the ACSM guideline of 30-60 g/hr for endurance exercise greater than 1 hour.