Ok, i'm not sure what's going on here, but was wondering if anyone can shed any light or explanation. This is something i've experienced for a long time but realised after speaking to others that it isn't right.
I've noticed that during a long ride where I eat on the bike, if I consume things such as off the shelf energy drinks, gels, energy bars etc that after consupmtion I experience an immediate lift in energy which lasts a short time (i.e 1-2mins) and is then followed by an energy slump which seems to slow me down (dependant on how much I consume at once), before I return to "normal" i.e back to the state that I was before I consumed anything.
Now, the strange thing is, if I consume fruit during the ride (bannanas, dates etc) I get a steady energy boost without the crash a couple of mins later. One small bannana may last me 20-30mins or so depending on the intensity of the exercise (the energy from the fruit wears off steadily, too).
Why is it these manufactured gels/bars/drinks don't seem to give me energy and just slow me down? I mentioned this to the guys I train with and they said that something isn't right if i'm perceiving so many ups/downs in blood sugar. I also get this varying energy feeling throughout the day (likely following meals etc) - it's the way I always have been for as long as I remember.
I've been tested for Diabetes already so it's not the issue, and my blood tests came back fine. On self diagnosis, i've put it down to hypoglycemia. Or could it be that I just don't tolerate some forms of sugars/grains very well?