For someone who keeps their carbohydrate low at all times other then before a workout, is there a substantial difference between fueling with fruit and it's fructose, or sweet potato and its starchy glucose?
For example; 5 x 1km intervals, might throw down 3 apples (-75g ish) vs 400g sweet potato (-80g).
I realise fructose has been dogmatised somewhat but I have been experimenting lately and have been finding not alot of difference between fruit or starchy carbs. I also understand that glucose is preferential post workout to target the muscles over the liver, but I'm looking for the carbs for fuel and not really recovery.
Would be interested in hearing people's opinions and any science behind which is better.
UPDATE (For Context) I am an athlete who trains hard twice a day. I have also visibly leaned out since reintroducing carbs after coming off a period of vlc trying to fuel training with coconut cream.