These tips are from the BC Soccer website. Please have a read and try to make sure you're well hydrated at least a day before game day (if not al the time;)
1) A well-balanced daily diet is the key to maintaining the energy for intense training. This means 2/3 carbohydrates (starch, milk, fresh fruits and vegetables), 1/3 protein (meat, fish and poultry) and a minimal amount of added fat. Supplements, for the most part, have not been proven to work and are often expensive, unnecessary, and in some cases potentially dangerous.
2) A pre-game meal is not meant to supply the energy for a game – the energy will not reach the muscles in time. However, a high carbohydrate meal is easy and quick to digest and should be consumed 3 –4 hours before game time.
3) A small snack can be eaten 1 –2 hours prior to game time but avoid sweets – they will not give you instant energy.
4) Hydration is one of the most important components of an athletes’ preparation, and often one of the most neglected. It is crucial in regulating body temperature and avoiding early fatigue. Drink plenty of water before and during a game. Keep a water bottle by the goal posts – this may even encourage those forwards to get back and defend! Replace 1 litre of water for every kg of weight loss after a game (i.e. fluid loss from sweat).Your play on the field is driven by the amount and quality of the fuel in your tank. To ensure optimum performance follow the above guidelines and keep the fried schnitzel to a minimum.