Gels are complete rubbish. You're being sucked into the hype. Try some proper training as that is proven to work. Sheesh.
OK, so give me the benefit of your wisdom. Tell me what you consider proper training.
My details:
I'm a 50+ year old female.
I run 45 - 50m per week , 6 days out of 7. I go out every morning around 5am to get my training in due to commitments.
Sundays are my long run - currently 20m. I can go out slightly later, around 7am. I need to leave around 2 - 3 hrs between eating and running otherwise I get massive heartburn - even a small mouthful of banana or something similar has this effect. So to date, every run I do (every day of the week) is done on empty. For my long runs, I eat sensibly the night before but at 20m am beginning to feel tired towards the end. I take 500ml water and a packet of Shot Bloks (6 in total). I don't always eat the Shot Bloks, but as I increase my mileage to a full marathon, I'm looking at possible alternatives to a solid cube.
I'm not aware of any forumite who has run an entire marathon without some form of carbohydrate intake during the run, nor have I ever come across a thread advocating such a thing. If you know of any thread, or any such forumite, then post the link and I'll ask for advice there.
Otherwise, feckin' sheesh yourself.