Cyclist are recommended to prepare at least two full drink bottles from every start point. Mobile feeding car handing out drink bottles with water and some small food while in the middle of touring.
Drinking to thirst is the best way to moderate your fluid intake. If you start think about drinking, have a sip. Don’t worry about running out – you’re better drinking all you have then refilling at the next feed station rather than holding back and getting dehydrated.
Regarding drink choices, it’s also down to what you’re used to – don’t expect your guts to readily accept a highly concentrated sports drink for the first time during your event. If you are using a sports drink, research in advance what’s on offer at aid stations to test if it settles well on your stomach before the big day.
Once on the bike, eat little and often with never more than 30 minutes between refuels. A good rule of thumb is that if you even so much as think about food, it’s time to have some. If you’re not comfortable eating without stopping, then stop. The aim is to enjoy yourself and complete the event.