Race day Have a good but conservative breakfast. This is especially difficult with an early race time. You may have to eat lightly, but you cannot go into combat with an empty engine. Avoid the untouchables.
Some athletes have problems with milk, eggs, apple and orange juice and apples.
Many can be gas-producing or too high in acidic content. Again, you need to learn about and know your body tolerances. One person can have three pancakes and run like the wind while his teammate may collapse with cramps at the mile mark. Obviously, the more front time you have between the intake of food and your race preparation, the easier it is to plan your type of food and the amount. If you have a tight window, discretion is the better course to follow.