UK, that's great that you are experimenting with food. It's good to find out what fuels you ride on.
I've told people that you train your stomach for the AIDS ride and your legs. On the ride you'll be encouraged to drink both sports bev and water all the time. But if you prefer another way just do that.
If there's a sports bev that you like pack some in bulk because Gatorade is what they have. By then you should know what works for you. Honey and sea salt (that sounds good, really!) there will be honey, bring sea salt for example.
Now's the time to experiment.
Margo, instead of a squeeze of lemming, can you use lime hee hee
JK, or maybe you know that UK studies lemmings. She's lemmingdoc ;-)
~aunt Trek