Scenario: On a hot summer ride I want to stay hydrated.
Tip: Of course I drink plenty of plain water with an occasional Gatorade to replace lost sodium. But food helps too. I pack a Tupperware container or two with a snack of grapes, sliced kiwi, grapefruit, or watermelon. They all have high water content and a nice balance of minerals too. Celery and cucumber are also great hydrating snacks. I also make sure to eat before I go out for a long hot ride. The food absorbs fluids and slows dehydration.