Originally Posted by
happyscientist
This. You are training your body to run off of bursts of sugar instead of reaching into its reserves. Also, if it gets a burst of sugar, insulin can spike (everyone has different sensitivities) causing the sugars in the gel to be burned faster than you intended. There is a lag in the insulin returning to normal, causing an additional drag on your resources.
You said it much better than I.
On another note...Get lentil beans (or an equivalent legume into your diet...) it's proven that they will limit insulin spikes by 30%-50%.