Nope - not impossible
Alacar (re: Emer-Gen-C) makes an electrolyte replacement drink that comes in little packets that could easily fit in a jersey pocket and mixes with water, or tea, or coffe (yup, tried them all). You should be able to find it at any health food store - it's called Electrolyte. No sugar, no junk just all the things you can get from Gatorade without the additives. Also, there is a bar called Larabar. All natural ingrediants again no sugar no additives. They all have dates, some other type of fruit and some type of nut in them so you get your carbs and your proteins and they aren't gooey chewy sticktotheroofofyourmouth or crunchy breakyourteethtryingtobiteit.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"